Physics Mock — Thermodynamics - sonepublication.in

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#1. The Internal energy of an ideal gas is depends on

Volume

Pressure

Entropy

Temperature

#2. The work done in an isothermal expansion of an ideal gas depends upon:

Initial and final volumes and temperature

Initial and final pressures only

Change in temperature only

Mass of the gas only

#3. The efficiency of a Carnot engine operating between temperatures T 1 and T 2 is:

1 − T1/T2

T2/T1

1 + 𝑇2/ 𝑇1

T1/T2

#4. In which process is molar specific heat infinite?

Isochoric process

Isothermal process

Adiabatic process

Isobaric process

#5. Q3. Zeroth Law of Thermodynamics states that:

Entropy of the universe always increases

Energy can neither be created nor destroyed

If two systems are separately in thermal equilibrium with a third system, they are in thermal equilibrium with each other

Heat flows from hot body to cold body

#6. During free expansion of an ideal gas:

Internal energy changes

Temperature decreases

Temperature increases

Temperature remains constant

#7. For an adiabatic process of an ideal gas, which quantity remains constant?

Pressure

Internal energy

Heat exchanged

Temperature

#8. Which thermodynamic variable is a path function?

Internal Energy

Work

Enthalpy

entropy

#9. Boyle’s law is valid for

Real gas

Both ideal and real gas

None

Ideal gas

#10. The slope of an adiabatic curve is:

Greater than isothermal curve

Equal to isothermal curve

Less than isothermal curve

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