Question

A gas with a volume of 2.5L at STP is moved to a room at SATP. What is the final volume of the gas? *

Answer 1

STP: T = 273.15 K

Room STP: T = 293.15 K

Then:

$${p_1V_1 \over T_1} = {p_2V_2 \over T_2}$$

$${1atm*2.5L \over 273.15 K} = {1atm*xL \over 293.15K}$$

$$x = {2.5 L*293.15 \over 273.15} = 2.68 L \approx 2.7L$$