If you have 21 moles of gas held at a pressure of 78 ATM and a temperature of 900 k, what is the volume of the gas?

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Answer 1 · 2014-06-27T23:05:33

In this questions certain # are given, # of moles ,n = 21 mol, Pressure P = 78 atm, Temperature T = 900 K, Volume V = ?

We have to calculate the volume of the given moles of gas at specific temperature and pressure.

Using Ideal Gas equation;

PV = nRT

V = nRT /P ( R = gas constant = 0.08206 L atm #mol^-1##K^-1# )

V= 21 mol x 0.08206 L atm #mol^-1##K^-1# x 900K / 78 atm

V= 73.854 L atm / 78 atm = 0.946 L