Question

A gas occupies 3.5L at 2.5 kPa pressure. What is the volume at 100 mmHg at the same temperature? Be sure to

show the setup and the final answer and unit.
Show Your Work

Answer 1

The volume at 100 mmHg : 0.656 L

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\\\\(p_1)/(p_2)=(V_2)/(V_1)`

V₁=3.5 L

P₁=2.5 kPa=18,7515 mmHg

P₂=100 mmHg

`\tt (18.7515)/(100)=(V_2)/(3.5)\\\\V_2=(18.7515* 3.5)/(100)=0.656~L`