'm' grams of a gas of a molecular weight M is flowing in an isolated tube with velocity V. If the flow of the gas is suddenly stopped the rise in temperature is ( Gamma=ratio of specific heats, R = universal gas const, J =mechanical equivalent of heat):
1) MV^2(Gamma-1)/ 2RJ , 2) m/M V^2(gamma-1)/2RJ , 3)mV^2 gamma/2RJ, 4) MV^2gamma/2RJ
My efforts:
Work = J Q or 1/2mV^2 = J (m s x rise in temp) or
Rise in temp = mV^2 /2m s
Now how to convert S =specific heat into ratio of specific heats of gas ?
we know gamma= (Cp /Cv)=(cp /cv)
but not able crack further.

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You may try to use Cp-Cv=R along with the ratio equation.
For specific heats Sp=Cp/M and Sv=Cv/M

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