Question

A sample of gas is stored at 15 atmosphere and has a volume of 5 liters.If the volume of the gas is reduced to 3 liters,what will the new pressure be?

Answer 1

The new pressure will be : 25 atm

Further explanation

Boyle's Law  

At a constant temperature, the gas volume is inversely proportional to the pressure applied  

$\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}$

P₁=15 atm

V₁=5 L

V₂= 3 L

$\tt P_2=\dfrac{P_1.V_1}{V_2}\\\\P_1=\dfrac{15~atm\times 5~L}{3~L}\\\\P_1=\boxed{\bold{25~atm}}$