Answer to Question #170495 in General Chemistry for Kelsey Ferguson

Question

A sample of nitrogen gas occupies a volume of 1.8 L at 870 mm Hg and 5° C. The volume increases by 1.7 L and the temperature decreases to 45 K. What is the final pressure exerted on the gas in mm Hg? Round to two decimal places.

Answer 1

Solution:

$\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}$

$\dfrac{870(1.8L)}{278K}=\dfrac{P_2(3.5L)}{45K}$

P₂ = 72.42 mmHg