Question

2.5 $L$ sample of a gas at 27${}^o$C and 1 bar pressure is compressed to a volume of 500 mL(T constant). The percentage increase in pressure is .

• A. 100%
• B. 500%
• C. 400%

Answer 1

The correct option is C 400%

We know that, $P_1{V}_1=P_2{V}_2$
$1\times 2.5$=$0.5\times P_2$ = 5 bar

Percentage increase in pressure$=\frac{5-1}{1}\times 100$% = $400$%