Question

If volume of fixed mass of gas at constant temperature is increased by 25%, the pressure of gas will be
Decreased by 25%
Decreased by 20%​

Answer 1

Answer:

decreased by 20%

PV=const.

therefore,

let initially p=100,v=100

final p'=125,v'=?

100*100= 125*V'

V'= 80

therefore decreased by 20%