Home Chapter 15 Practice Questions

# Practice Questions

This activity contains 25 questions.

## The process shown above is called

 isobaric process. isochoric process. isothermal process. adiabatic process.

## The process shown above is called

 isobaric process. isochoric process. isothermal process. adiabatic process.

## The process shown above is called

 isobaric process. isochoric process. isothermal process. adiabatic process.

## In the above figure, the volume at Point "a" is 200 L and the pressure is 5 atm. The pressure at "b" is 1 atm. What is the work done?

 80000000 J 400000 J 80000 J 0 J

## In the above figure, the volume at Point "a" is 200 L and the pressure is 5 atm. The volume at "b" is 400 L. What is the work done?

 2 x 108 J 1 x 108 J 1 x 105 J 0 J

## In the above figure, the volume at Point "c" is 800 L and the pressure is 2 atm. The volume at "d" is 400 L. What is the work done?

 8 x 107 J 8 x 104 J -8 x 107 J -8 x 104 J

## In the above figure, the volume at Point "c" is 800 L and the pressure is 2 atm. The volume at "a" is 400 L and the pressure is 5 atm. What is the work done as the system goes through one complete cycle abcd?

 800000 J 400000 J 280000 J 120000 J

## In the above figure, the volume at Point "c" is 800 L and the pressure is 2 atm. The volume at "a" is 400 L and the pressure is 5 atm. What heat is absorbed by the system in the above square cycle?

 120000 J 0 J -120000 J Not enough information.

## In the above figure the volume at Point "c" is 800 L and the pressure is 2 atm. The volume at "a" is 400 L and the pressure is 5 atm. What is the work done as the system goes through one complete cycle acda?

 -60000 J 0 J 60000 J 120000 J

## In the above figure, the work is

 positive. zero. negative.

## If the heat engine above is a Carnot engine, and QH is 10000 J, what is W?

 4500 J 5500 J 6500 J 7500 J

## What is the heat loss, QC?

 4500 J 5500 J 6500 J 7500 J

## What is the coefficient of performance (CP) of the reversible (Carnot) refrigerator shown above?

 0.1 9 10 11

## What is the coefficient of performance (CP) of the reversible (Carnot) heat pump shown above?

 0.1 9 10 11

## The heat engine shown above is

 a reversible (Carnot) heat engine. an irreversible heat engine. a hoax. none of the above.

## The heat engine shown above is

 a reversible (Carnot) heat engine. an irreversible (Carnot) heat engine. a hoax. none of the above.

## The heat engine shown above is

 a reversible (Carnot) heat engine. an irreversible (Carnot) heat engine. a hoax. none of the above.

Use this animation

The gas in the cylinder is undergoing a Carnot cycle. In which step is the gas absorbing heat?

 A B C D

## Use this animationIn which step is the temperature of the gas animation increasing?

 A B C D

## Use this animationIn which step is the gas animation losing heat?

 A B C D

## Use this animationIn which step is the gas animation doing work but not exchanging heat?

 A B C D

## A reservoir delivers 1000 J of heat to another reservoir at 133 oC. What is the increase in entropy of the second reservoir?

 7.52 J/K 2.5 J/K 1000 J/K 133000 J/K

## A reservoir delivers 1000 J of heat to another reservoir at 133 oC. What can be said about the change in entropy of the first reservoir during the process?

 positive and < 2.5 positive and > 2.5 negative and > -2.5 negative and < -2.5

The chances of getting two heads when you throw two coins is 1/4. What is the chance of getting four heads when you throw four coins?

 1/4 1/16 1/48 None of the above.