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29-05-2020
Chemistry

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Determine the volume occupied by 2.5 mol of a gas at 18 °C if the pressure is 81.8 kPa?

Respuesta :

29-05-2020

Answer:

74 litre

Explanation:

using ideal gas eqation PV=nRT

here P(pressure)=81.8 kPa =81.8×10^3 Pa

moles=2.5

temperature=273.15+18=291.15K

Gas constant R=8.314m^3-Pa/K-mol

now, V=nRT/P = 8.314×2.5×291.5/81.8×10^3 ≈74litre

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