pressure of ideal gas

Question

What is the pressure of 10.5 mol of an ideal gas if it is at 75 Celsius and occupies a volume of 2.25 L?

Answer 1

Use the ideal gas law equation to solve.

PV = nRT

P = ?

V = 2.25 L

n = 10.5 mol

R = 0.0821 L atm mol^-1 K^-1

T = 75 °C + 273 K = 348 K

P = nRT / V = (10.5 mol x 0.0821 L atm mol^-1 K^-1 x 348 K) / 2.25 L = 133 atm