Thermal Physics II Quiz

What are the thermodynamic variables that specify the state of a system?

• Pressure, Volume, Temperature

• Mass, Density, Energy

• Velocity, Acceleration, Force

• Length, Width, Height

What is the equation of state for an ideal gas?

• P = V/T

• PV = NkT

• V = NkT

• P = NkT

What is the mathematical expression for the First Law of Thermodynamics?

• ΔE = q + w

• ΔE = q - w

• ΔE = q * w

• ΔE = q / w

What are work and heat referred to as in thermodynamics?

• Dynamic variables

• Thermal variables

• State variables

• Path variables

What is the specific heat at constant volume denoted by?

• Ck

• Ct

• Cp

• Cv

What is the specific heat at constant pressure denoted by?

• Cp

• Ck

• Cv

• Ct

What is the efficiency of a heat engine working between a high temperature and a low temperature?

• 1 + (Tc/Th)

• 1 - (Th/Tc)

• 1 + (Th/Tc)

• 1 - (Tc/Th)

What is the maximum efficiency of a nuclear reactor with core temperature at 300 and heat rejection at 30?

• 40.684%

• 30.213%

• 20.942%

• 10.471%

What is the efficiency of a refrigerator always less than?

• 2

• 1

• 0.5

• 0.75

What is the Second Law of Thermodynamics about?

• Transfer of thermal energy from a cooler object to a hotter object

• Generation of perpetual motion machines

• Transfer of thermal energy from a hotter object to a cooler object

• Efficiency of heat engines