Question

An initial volume of 2.00 L of a gas is at 740 mmHg pressure. What is the final volume at standard pressure?

Answer 1

Solution.

$V_i=2.0L;$

$p_i=740mmHg;$

$p_f=760mmHg;$

$V_f - ?;$

$pV=const;$

$p_iV_i=p_fV_f;\implies V_f=\dfrac{p_iV_i}{p_f};$

$V_f=\dfrac{740mmHg\sdot2.0L}{760mmHg}=1.95L;$

Answer: $V_f=1.95L.$