Ramsay Test Thermodynamics 3

Question 1

The second law of thermodynamics states that the entropy of an isolated system tends to do what?

Accepted Answer

Increase

Answer

Decrease

Answer

Remain constant

Answer

Reach zero

Question 2

In a refrigeration cycle, what does the evaporator do?

Accepted Answer

Absorbs heat from the cooled space

Answer

Rejects heat to the surroundings

Answer

Compresses the refrigerant

Answer

Expands the liquid refrigerant

Question 3

What property describes a material's resistance to heat flow?

Accepted Answer

Thermal resistance

Answer

Thermal conductivity

Answer

Heat capacity

Answer

Emissivity

Question 4

When a gas is compressed quickly with no heat exchange, the process is called what?

Accepted Answer

Adiabatic

Answer

Isothermal

Answer

Isobaric

Answer

Isochoric

Question 5

What is the SI unit of heat energy?

Accepted Answer

Joule

Answer

Watt

Answer

Pascal

Answer

Newton

Question 6

Hot air rising and cool air sinking in a room is an example of what heat transfer mode?

Accepted Answer

Convection

Answer

Conduction

Answer

Radiation

Answer

Sublimation

Question 7

What is specific heat capacity a measure of?

Accepted Answer

Energy to raise one unit mass by one degree

Answer

Total heat in a body

Answer

Rate of heat flow

Answer

Temperature at phase change