AP and TS EAMCET Engineering Model Paper 3

Three samples of the same gas A,B&C(γ=

3

2

) have initially equal volume. Now the volume of each sample is doubled. The process is adiabatic for A, isobaric for 'B' andisothermal for' 'C' . If the final pressures are equal for all the three samples, find the ratio of their initial pressures