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Question : 51) For a chemical reaction at equilibrium, which of the : 1282449

Economics

 

 

51) For a chemical reaction at equilibrium, which of the following would always decrease the concentrations of the products?

A) Increase the temperature.

B) Decrease the temperature.

C) Decrease the pressure.

D) Decrease the concentration of a gaseous or aqueous reactant.

 

52) The following reaction is endothermic:  CaCO3 (s)    CaO (s) + CO2 (g). Which of the following will cause the reaction to shift towards making more carbon dioxide gas?

A) increasing the temperature of the reaction

B) decreasing the temperature of the reaction

C) increasing the pressure of the system

D) increasing the pressure and decreasing the temperature of the system

 

53) Consider the following chemical system at equilibrium.

Heat + 6 H2O (g)  + 2 N2 (g)    4 NH3 (g)  +  3O2 (g)

Which of the following stresses would shift the equilibrium to the left?

A) increasing the concentration of O2

B) increasing the reaction temperature

C) increasing the concentration of H2O

D) decreasing the concentration of NH3

54) Consider the following system at equilibrium:

N2 (g)  + 3 H2 (g)   2 NH3 (g) +  92. 94 kJ

Which of the following changes will shift the equilibrium to the right?

1.  Increasing the temperature2.  Decreasing the temperature

3.  Increasing the volume4.  Decreasing the volume

5.  Removing some NH36.  Adding some NH3

7.  Removing some N28.  Adding some N2.

A) 1, 4, 6, 7

B) 2, 3, 5, 8

C) 1, 6, 8

D) 2, 4, 5, 8

 

55) Coal burning plants release sulfur dioxide, a toxic gas, into the atmosphere. Nitrogen monoxide is released into the atmosphere via industrial processes and the combustion engine. Sulfur dioxide can also be produced in the atmosphere by the reaction of sulfur trioxide and nitrogen monoxide according to the following equilibrium. reaction

SO3 (g)  + NO (g) + Heat   SO2 (g)  + NO2 (g)

Which of the following stresses will not shift the equilibrium to the right?

A) decrease the reaction chamber volume (pressure increase)

B) temperature increase

C) [NO2] decrease

D) [NO] increase

 

56) Which of the following conditions would force the reaction to go to completion?

2 N2 (g) + 6 H2O (g)  +  heat     4 NH3 (g) + 3 O2 (g)                

A) continual removal of N2 gas

B) decrease the pressure on the reaction vessel

C) continual addition of NH3 gas to the reaction mixture

D) increase reaction temperature

16.2   Short Answer

 

1) a) Draw an energy diagram for the following reaction, whose activation energy is 75 kJ/mol and whose overall energy for the reaction is exothermic. Be sure to label all parts of the graph, including potential energy of reactant/products, Ea and enthalpy of reaction. b) How does a catalyst speed up a reaction? Explain and illustrate it on your graph.

H2 (g)  +  I2 (g) –>  2 HI (g) + heat

 

2) A 0.20 mole sample of C and a 0.10 mole sample of B are placed in a reaction chamber. At equilibrium, 0.080 mole of A is present. What is the composition of the equilibrium mixture in terms of moles of each substance present.

4 C (g)  +  B (g)    2 A (g)                

 

 

 

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July 1, 2023
    

 

 

51) In the short run, a decrease in aggregate demand will lead to

A) a decrease in the price level and an increase in real GDP.

B) an increase in the price level and a decrease in real GDP.

C) a decrease in the price level and an increase in the unemployment rate.

D) an increase in the price level and an increase in real GDP.

E) no change in the price level and a decrease in real GDP.

 

52) If the economy moves upward along its short-run Phillips curve, in the AS-AD diagram, this movement is shown by a

A) movement upward along the AS curve as a result of a rightward shift of the AD curve.

B) rightward shift of potential GDP.

C) movement downward along the AS curve as a result of a leftward shift of the AD curve.

D) rightward shift of the AS curve and a movement along the AD curve.

E) leftward shift of the AS curve and a movement along the AD curve.

 

53) If aggregate demand increases, thereby leading to an increase in real GDP and inflation, there is

A) a movement downward along the short-run Phillips curve.

B) a movement upward along the short-run Phillips curve.

C) a rightward shift in the short-run Phillips curve.

D) a leftward shift in the short-run Phillips curve.

E) neither a movement along nor a shift in the short-run Phillips curve.

54) The relationship between the AS-AD model and the Phillips curve points out that as aggregate demand increases, the unemployment rate

A) decreases and the inflation rate rises.

B) increases and the inflation rate falls.

C) decreases and the price level falls.

D) increases and the inflation rate rises.

E) decreases and the inflation rate does not change, only the price level rises.

 

55) Data from the United States and the United Kingdom show that the short-run Phillips curve exhibits

A) a great deal of shifting.

B) stability with shifts occurring only when external forces are strong.

C) stability with shifts occurring only when there is an internal change of government.

D) shifts that occur every five years or so.

E) positive slopes in both nations.

 

56) Changes in which of the following shift the short-run Phillips curve?

i.changes in the natural unemployment rate

ii.changes in the expected inflation rate

iii.changes in the inflation rate

A) i only

B) ii only

C) iii only

D) i and ii

E) i, ii, and iii

57) The short-run Phillips curve shows a relationship between the

A) inflation rate and the interest rate.

B) inflation rate and real GDP.

C) unemployment rate and the interest rate.

D) inflation rate and the unemployment rate.

E) price level and real GDP.

 

58) The short-run Phillips curve is

A) vertical at the natural unemployment rate.

B) upward sloping.

C) downward sloping.

D) horizontal at the expected inflation rate.

E) U-shaped.

 

59) Moving along the short-run Phillips curve, as the unemployment rate increases the inflation rate

A) decreases.

B) increases.

C) remains unchanged.

D) initially decreases and then increases.

E) initially increases and then decreases.

 

60) When a movement up along the aggregate supply curve occurs, there is also

A) a movement down along the short-run Phillips curve.

B) a movement up along the short-run Phillips curve.

C) a rightward shift of the short-run Phillips curve.

D) a leftward shift of the short-run Phillips curve.

E) no movement along nor a shift in the short-run Phillips curve.

61) If real GDP exceeds potential GDP, then employment is ________ full employment and the unemployment rate is ________ the natural unemployment rate.

A) below; above

B) equal to; below

C) above; below

D) above; above

E) equal to; equal to

 

62) According to Okun's Law, if the natural unemployment rate is 5 percent, the actual unemployment rate is 4 percent, and potential GDP is $15 trillion, then actual real GDP is

A) $12.0 trillion.

B) $15.0 trillion.

C) $14.7 trillion.

D) $15.4 trillion.

E) $15.3 trillion.

 

63) When aggregate demand increases, there is a movement ________ along the AS curve and ________.

A) up; a movement up along the short-run Phillips curve

B) up; a movement down along the short-run Phillips curve

C) up; an upward shift of the short-run Phillips curve

D) down; a downward shift of the short-run Phillips curve

E) down; a movement down along the short-run Phillips curve

 

 

default image
July 1, 2023
    

 

 

51) In the short run, a decrease in aggregate demand will lead to

A) a decrease in the price level and an increase in real GDP.

B) an increase in the price level and a decrease in real GDP.

C) a decrease in the price level and an increase in the unemployment rate.

D) an increase in the price level and an increase in real GDP.

E) no change in the price level and a decrease in real GDP.

 

52) If the economy moves upward along its short-run Phillips curve, in the AS-AD diagram, this movement is shown by a

A) movement upward along the AS curve as a result of a rightward shift of the AD curve.

B) rightward shift of potential GDP.

C) movement downward along the AS curve as a result of a leftward shift of the AD curve.

D) rightward shift of the AS curve and a movement along the AD curve.

E) leftward shift of the AS curve and a movement along the AD curve.

 

53) If aggregate demand increases, thereby leading to an increase in real GDP and inflation, there is

A) a movement downward along the short-run Phillips curve.

B) a movement upward along the short-run Phillips curve.

C) a rightward shift in the short-run Phillips curve.

D) a leftward shift in the short-run Phillips curve.

E) neither a movement along nor a shift in the short-run Phillips curve.

54) The relationship between the AS-AD model and the Phillips curve points out that as aggregate demand increases, the unemployment rate

A) decreases and the inflation rate rises.

B) increases and the inflation rate falls.

C) decreases and the price level falls.

D) increases and the inflation rate rises.

E) decreases and the inflation rate does not change, only the price level rises.

 

55) Data from the United States and the United Kingdom show that the short-run Phillips curve exhibits

A) a great deal of shifting.

B) stability with shifts occurring only when external forces are strong.

C) stability with shifts occurring only when there is an internal change of government.

D) shifts that occur every five years or so.

E) positive slopes in both nations.

 

56) Changes in which of the following shift the short-run Phillips curve?

i.changes in the natural unemployment rate

ii.changes in the expected inflation rate

iii.changes in the inflation rate

A) i only

B) ii only

C) iii only

D) i and ii

E) i, ii, and iii

57) The short-run Phillips curve shows a relationship between the

A) inflation rate and the interest rate.

B) inflation rate and real GDP.

C) unemployment rate and the interest rate.

D) inflation rate and the unemployment rate.

E) price level and real GDP.

 

58) The short-run Phillips curve is

A) vertical at the natural unemployment rate.

B) upward sloping.

C) downward sloping.

D) horizontal at the expected inflation rate.

E) U-shaped.

 

59) Moving along the short-run Phillips curve, as the unemployment rate increases the inflation rate

A) decreases.

B) increases.

C) remains unchanged.

D) initially decreases and then increases.

E) initially increases and then decreases.

 

60) When a movement up along the aggregate supply curve occurs, there is also

A) a movement down along the short-run Phillips curve.

B) a movement up along the short-run Phillips curve.

C) a rightward shift of the short-run Phillips curve.

D) a leftward shift of the short-run Phillips curve.

E) no movement along nor a shift in the short-run Phillips curve.

61) If real GDP exceeds potential GDP, then employment is ________ full employment and the unemployment rate is ________ the natural unemployment rate.

A) below; above

B) equal to; below

C) above; below

D) above; above

E) equal to; equal to

 

62) According to Okun's Law, if the natural unemployment rate is 5 percent, the actual unemployment rate is 4 percent, and potential GDP is $15 trillion, then actual real GDP is

A) $12.0 trillion.

B) $15.0 trillion.

C) $14.7 trillion.

D) $15.4 trillion.

E) $15.3 trillion.

 

63) When aggregate demand increases, there is a movement ________ along the AS curve and ________.

A) up; a movement up along the short-run Phillips curve

B) up; a movement down along the short-run Phillips curve

C) up; an upward shift of the short-run Phillips curve

D) down; a downward shift of the short-run Phillips curve

E) down; a movement down along the short-run Phillips curve

 

 

default image
July 1, 2023
    

 

 

51) In the short run, a decrease in aggregate demand will lead to

A) a decrease in the price level and an increase in real GDP.

B) an increase in the price level and a decrease in real GDP.

C) a decrease in the price level and an increase in the unemployment rate.

D) an increase in the price level and an increase in real GDP.

E) no change in the price level and a decrease in real GDP.

 

52) If the economy moves upward along its short-run Phillips curve, in the AS-AD diagram, this movement is shown by a

A) movement upward along the AS curve as a result of a rightward shift of the AD curve.

B) rightward shift of potential GDP.

C) movement downward along the AS curve as a result of a leftward shift of the AD curve.

D) rightward shift of the AS curve and a movement along the AD curve.

E) leftward shift of the AS curve and a movement along the AD curve.

 

53) If aggregate demand increases, thereby leading to an increase in real GDP and inflation, there is

A) a movement downward along the short-run Phillips curve.

B) a movement upward along the short-run Phillips curve.

C) a rightward shift in the short-run Phillips curve.

D) a leftward shift in the short-run Phillips curve.

E) neither a movement along nor a shift in the short-run Phillips curve.

54) The relationship between the AS-AD model and the Phillips curve points out that as aggregate demand increases, the unemployment rate

A) decreases and the inflation rate rises.

B) increases and the inflation rate falls.

C) decreases and the price level falls.

D) increases and the inflation rate rises.

E) decreases and the inflation rate does not change, only the price level rises.

 

55) Data from the United States and the United Kingdom show that the short-run Phillips curve exhibits

A) a great deal of shifting.

B) stability with shifts occurring only when external forces are strong.

C) stability with shifts occurring only when there is an internal change of government.

D) shifts that occur every five years or so.

E) positive slopes in both nations.

 

56) Changes in which of the following shift the short-run Phillips curve?

i.changes in the natural unemployment rate

ii.changes in the expected inflation rate

iii.changes in the inflation rate

A) i only

B) ii only

C) iii only

D) i and ii

E) i, ii, and iii

57) The short-run Phillips curve shows a relationship between the

A) inflation rate and the interest rate.

B) inflation rate and real GDP.

C) unemployment rate and the interest rate.

D) inflation rate and the unemployment rate.

E) price level and real GDP.

 

58) The short-run Phillips curve is

A) vertical at the natural unemployment rate.

B) upward sloping.

C) downward sloping.

D) horizontal at the expected inflation rate.

E) U-shaped.

 

59) Moving along the short-run Phillips curve, as the unemployment rate increases the inflation rate

A) decreases.

B) increases.

C) remains unchanged.

D) initially decreases and then increases.

E) initially increases and then decreases.

 

60) When a movement up along the aggregate supply curve occurs, there is also

A) a movement down along the short-run Phillips curve.

B) a movement up along the short-run Phillips curve.

C) a rightward shift of the short-run Phillips curve.

D) a leftward shift of the short-run Phillips curve.

E) no movement along nor a shift in the short-run Phillips curve.

61) If real GDP exceeds potential GDP, then employment is ________ full employment and the unemployment rate is ________ the natural unemployment rate.

A) below; above

B) equal to; below

C) above; below

D) above; above

E) equal to; equal to

 

62) According to Okun's Law, if the natural unemployment rate is 5 percent, the actual unemployment rate is 4 percent, and potential GDP is $15 trillion, then actual real GDP is

A) $12.0 trillion.

B) $15.0 trillion.

C) $14.7 trillion.

D) $15.4 trillion.

E) $15.3 trillion.

 

63) When aggregate demand increases, there is a movement ________ along the AS curve and ________.

A) up; a movement up along the short-run Phillips curve

B) up; a movement down along the short-run Phillips curve

C) up; an upward shift of the short-run Phillips curve

D) down; a downward shift of the short-run Phillips curve

E) down; a movement down along the short-run Phillips curve

 

 

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