# NEET Physics Thermodynamics Questions Solved

An ideal gas expands in such a manner that its pressure and volume can be related by equation PV2 = constant. During this process, the gas is

(1) Heated

(2) Cooled

(3) Neither heated nor cooled

(4) First heated and then cooled

(2) $P{V}^{2}=$ constant represents adiabatic equation. So during the expansion of ideal gas internal energy of gas decreases and temperature falls.

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