question_answer

For an ideal gas undergoing an adiabatic change, the equation giving the relation between its temperature T and pressure P is (where \[y\]= ratio of two specific heats \[{{C}_{p}}\] and \[{{C}_{u}}\] of the gas) :

A)  \[{{p}^{1-\gamma T\gamma =}}\] constant        

B)  \[{{p}^{\gamma -T\gamma -1=}}\] constant

C)  \[P{{T}^{y-1=}}\] constant         

D)  \[P{{T}^{\gamma 1=}}\] constant