NEET Questions

In an adiabatic process, which of the following remains constant?

A gas absorbs 50 J of heat and does 20 J of work on its surroundings. What is the change in its internal energy?

A system absorbs 100 J of heat and its internal energy increases by 70 J. How much work is done by the system?

In an isochoric process, the internal energy of a system increases by 50 J. What is the heat absorbed by the system?

A gas expands from an initial volume of 0.5 m³ to a final volume of 1.5 m³ against a constant external pressure of 2 x 10⁵ Pa. How much external work is done by the gas?

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

When a gas expands adiabatically against a constant external pressure, which of the following is true?

A system undergoes an isothermal expansion. Which of the following is true about the work done by the system?

A gas is compressed from 2 L to 1 L against a constant external pressure of 1 atm. Calculate the work done on the gas (in Joules). (1 L atm ≈ 101.3 J)

A diatomic gas undergoes an adiabatic expansion. If the initial pressure is $P_1$ and the final pressure is $P_2$, and the initial volume is $V_1$, what is the final volume $V_2$?