An ideal gas is expanded so that the amount of heat given is equal to the decrease in internal energy of the gas. The gas undergoes the process PV 6 5 = constant. The gas may be

Question

An ideal gas is expanded so that the amount of heat given is equal to the decrease in internal energy of the gas. The gas undergoes the process PV 6 5 = constant. The gas may be, H e, O 2, A r, all of the above

MARKS App · Accepted Answer

Given that amount of heat given is equal to the decrease in internal energy, dQ = - dU C = - C V R γ - l + R l - x = - R γ - l R γ - l + R l - 6 5 = - R γ - l 5 2 = l γ - l ⇒ γ - l = 2 5 ⇒ γ = 7 5 The gas may be diatomic or polyatomic linear.

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