Thermodynamics - Result Question 35

37. At 27C a gas is compressed suddenly such that its pressure becomes (1/8) of original pressure. Final temperature will be (γ=5/3)

(a) 420K

(b) 300K

(c) 142C

(d) 327C

[1989]

Topic 3: Carnot Engine, Refrigerator & Second Law of Thermodynamics

Show Answer

Answer:

Correct Answer: 37. (c)

Solution:

  1. (c) T1γP11γ=T2γP21γ

(T2T1)γ=(P1P2)1γ

T2=T1(P1P2)1γγ=300×(8)2/5=142C



NCERT Chapter Video Solution

Dual Pane