JEE Physics - MCQ Practice Questions

A gas expands adiabatically from state (P₁, V₁, T₁) to state (P₂, V₂, T₂). Which relation is correct for this process?

The internal energy of an ideal gas depends only on:

A thermodynamic system does 600 J of work while 2400 J of heat is supplied to it. What is the change in internal energy?

A system absorbs 8000 J of heat and its internal energy increases by 5000 J. According to the first law of thermodynamics, what work is done by the system?

A heat engine operates between two reservoirs at temperatures 500 K and 300 K. What is the maximum theoretical efficiency of this engine?

Three moles of an ideal diatomic gas are heated at constant pressure from 300 K to 600 K. Calculate the heat absorbed by the gas. (R = 8.314 J/mol·K)

A gas expands isothermally from volume V₁ to 3V₁ at temperature T. If the initial pressure is P₁, what is the work done by the gas?