we first need to find the number of moles of gas at the conditions given. we have to apply ideal gas law equation to find the number of moles PV = nRT where P - pressure - 97 kPa V - volume - 0.140 x 10⁻³ m³ n - number of moles R - universal gas constant - 8.314 Jmol⁻¹K⁻¹ T - temperature - 273 + 35 = 308 K substituting these values in the equation 97 000 Pa x 0.140 x 10⁻³ m³ = n x 8.314 Jmol⁻¹K⁻¹ x 308 K n = 5.30 x 10⁻³ mol
at standard pressure and temperature conditions, 1 mol of gas occupies 22.4 L therefore 0.00530 mol - 22.4 L/mol x 0.00530 mol the volume occupied - 0.1187 L volume of gas at STP is 118.7 mL
