Question

Three samples of the same gas A, B and wC(g = 3/2) have initially equal volume. Now the volume of each sample is doubled. The process is adiabatic for A isobaric for B and isothermal for C. If the final pressure are equal for all three samples, the ratio of their initial pressures are

• A. $2 \sqrt { 2 }$: 2 : 1
• B. $2 \sqrt { 2 }$ : 1 : 2
• C. $\sqrt { 2 }$ : 1 : 2
• D. 2 : 1 : $\sqrt { 2 }$

Answer 1

Answer: (B)

$2 \sqrt { 2 }$ : 1 : 2

Answer 2

A ® Adiabatic ® PV^g = Const.

B ® Isobaric ® P = const.

C ® Isothermal ® T = const.

\P_A : P_B : P_C = $2 \sqrt { 2 }$ : 1 : 2