A gas is filled in a cylinder. its temperature is increased by 20% on the Kelvin scale and volume is reduced by 10% How much percentage of the gas has to leak for pressure to remind constant ?

Options

A. 0.3
B. 0.4
C. 0.15
D. 0.25

Answer

D

Explanation

According to Charlie.s law
`VpropT` (P= constant)
`rArrV/T=(V.)/(T.)rArrV.=1.2V`
Volume is reduced by 10% `rArrV.=0.9V`
% of volume leaked out
`=((1.2-0.9)V)/(1.2V)xx100=25%`