NEET Physics Thermodynamics Questions Solved

In the following P-V diagram two adiabatics cut two isothermals at temperatures T1 and T2 (fig.). The value of VaVd will be

(1) VbVc

(2) VcVb

(3) VdVa

(4) VbVc

(1) For adiabatic process T1Vbγ1 = Constant

For bc curve T1Vbγ1=T2Vcγ1 or T2T1=VbVcγ1 …..(i)

For ad curve T1Vaγ1=T2Vdγ1 or T2T1=VaVdγ1…..(ii)

From equation (i) and (ii) VbVc=VaVd

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