In a thermodynamic process helium gas obeys law TP^{-2 /5} = constant. heat given to gas w

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11.Thermodynamics

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In a thermodynamic process helium gas obeys the law $TP^{-2 /5} =$ constant. The heat given to the gas when the temperature of $2$ moles of the gas is raised from $T$ to $4T$ $(R$ is the universal gas constant) is :-

A

$9\,RT$

B

$18\,RT$

C

Zero

D

data insufficient

Solution

$T P^{-2 / 5}=$ constant: Using gas equation we can write $P V^{5 / 3}=$ constant

Standard 11

Physics

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