MHT CET 2023 13th May Evening Shift | Heat and Thermodynamics Question 15 | Physics

A gas at pressure $$p_0$$ is contained in a vessel. If the masses of all the molecules are halved and their velocities are doubled, then the resulting pressure would be equal to

$$4 p_0$$

$$2 p_0$$

$$p_0$$

$$p_0 / 2$$

MHT CET 2023 13th May Evening Shift

MCQ (Single Correct Answer)

-0

For an adiabatic process, which one of the following is wrong statement?

Equation of state is $$p V=$$ constant

There is exchange of heat with surrounding

All the work is utilised to change the internal energy of the system

Temperature of the system changes i.e. $$\Delta T \neq 0$$

MHT CET 2023 13th May Evening Shift

MCQ (Single Correct Answer)

-0

Which one of the following is based on convection?

Heating of a copper utensil

Heating a room by heater

Heating of iron rod

Heat transferred from sun to earth

MHT CET 2023 13th May Evening Shift

MCQ (Single Correct Answer)

-0

A carnot engine operates with source at $$227^{\circ} \mathrm{C}$$ and sink at $$27^{\circ} \mathrm{C}$$. If the source supplies $$50 \mathrm{~kJ}$$ of heat energy, the work done by the engine is

2 kJ

5 kJ

10 kJ

20 kJ

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