Question bank/JEE Main/Physics
JEE MainPhysicsModerateThermodynamics
An ideal gas obey the law [IMAGE] constant. x is
value for which it has zero molar specific heat at normal temperature.
Then find 5 x. ([IMAGE] for the gas is 2.5 R)
gS ftlds fy, ij bl j fof'k"B A rc 5x
dk eku Kkr djksa ¼xSl




Show answer and solution
For a gas at normal temperature, ij xSl ds fy,[IMAGE] Specific heat for a polytropic process
i‚ayhVªksfid çØe ds fy, fof'k"B
[IMAGE] According to question iz"ukuqlkj C=0





i‚ayhVªksfid çØe ds fy, fof'k"B
[IMAGE] According to question iz"ukuqlkj C=0





Source: Grass-G / Ph-25 Physics paper 7 Jan.docx
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