Question

At a constant temperature a gas occupies a volume of $200ml$ at a pressure of $0.720$ bar. It is subjected to an external pressure of $0.900$ bar. What is the resulting volume of the gas?

• A. $160ml$
• B. $320ml$
• C. $80ml$
• D. $400ml$

Answer 1

The correct option is A $160ml$

According to Boyle's Law

$P_1{V}_1=P_2{V}_2$

$200\times 0.72=0.9\times V_2$

$V_2=160ml$

Option A is correct