JEE Physics - MCQ Practice Questions

A Carnot engine operates between temperature reservoirs of 500 K and 300 K. What is its maximum efficiency?

What is the first law of thermodynamics?

For an ideal gas, internal energy depends on:

What is the relationship between Cₚ and Cᵥ for an ideal gas?

In an isochoric process for an ideal gas, what is the relationship between pressure and temperature?

What is the Clausius statement of the second law of thermodynamics?

For a diatomic ideal gas at room temperature, what is the ratio γ = Cₚ/Cᵥ?

A thermodynamic system undergoes a process where internal energy increases by 150 J while the system does 100 J of work on surroundings. What is the heat absorbed by the system?

For one mole of an ideal monatomic gas, the ratio Cp/Cv is:

In an adiabatic process, if a gas is compressed, which statement is correct?

A carnot engine operates between temperatures 500 K and 300 K. What is its maximum efficiency?

A system absorbs 500 J of heat and performs 200 J of work on the surroundings. What is the change in internal energy of the system?

An ideal gas undergoes an adiabatic process. If the gas is compressed, which of the following is true?

What is the efficiency of a Carnot engine operating between 400 K and 300 K?

A heat pump delivers 5000 J of heat to a house while consuming 1500 J of work. Its coefficient of performance is:

A diatomic ideal gas expands isothermally from volume V₁ to 2V₁. If the initial pressure is P₀, what is the work done by the gas?

An ideal gas undergoes adiabatic compression from state (P₁, V₁, T₁) to (P₂, V₂, T₂). Which relation is correct?

The internal energy of an ideal gas depends on:

A Carnot engine operates between 400 K and 300 K. Its maximum efficiency is:

A system absorbs 4000 J of heat and does 1500 J of work. Change in internal energy is: