A cylinder of nitrogen gas has a volume of 1.6*104 cm3 and a pressure of 100 atm. What is the thermal energy of this gas at room temperature (20∘C) ?

2400 J

Explanation:

For the purposes of this question, we will treat nitrogen as an ideal gas. Thermal energy is calculated in the following way:

thermal energy = 1.5nRT

But since PV = nRT

then thermal thermal energy = 1.5PV

thermal energy = 1.5 * 1.6*10^4 cm³ * 100 atm

= 1.5 * 16 L * 100 atm = 2400 J