Question

One mole of an ideal gas at standard temperature and pressure occupies 22.4 litre what is the ratio of molar volume to the atomic volume of a mole of hydrogen why is this ratio so large

Answer 1

Explanation:

1 mole of hydrogen contains 6.023 × 1023 hydrogen atoms. 2.17. One mole of an ideal gas at standard temperature and pressure occupies 22.4 L (molar volume).

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Answer 2

Answer:

The ideal gas equation relating pressure (P), volume (V), and absolute temperature (T) is given as:

PV = nRT

Where,

R is the universal gas constant = 8.314 J mol–1 K–1

n = Number of moles = 1

T = Standard temperature = 273 K

P = Standard pressure = 1 atm = 1.013 × 105 Nm–2

∴ V = nRT / P

= 1 × 8.314 × 273 / (1.013 × 105)

= 0.0224 m3

= 22.4 litres

Hence, the molar volume of a gas at STP is 22.4 litres.