Molar volume is the volume occupied by 1 mol of any (ideal) gas at standard temperature and pressure (STP: 1 atmospheric pressure, 0 °C). Show that it is 22.4 litres.

One mole of a gas having a volume equal to 22.4 litres and at 1 atmospheric pressure in compressed isothermally so that its volume reduces to 11.2 litres. The work done in this process is

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How many moles of He gas occupy 22.4 litres at 30oC and one atmospheric pressure?

The correct option is A 0.90We know for ideal conditionpV=nRTn=pVRTooC=273K30oC=30+273=303Kn=(1 atm)(22.4 L)(0.082 Latm/moleK)(303)n=0.90 mole

How many moles of $H e$ gas occupy $22.4$ litres at $30^{o} C$ and one atmospheric pressure?

The correct option is A $0.90$
We know for ideal condition

$p V = n R T$

$n = \frac{p V}{R T}$

$o^{o} C = 273 K$

$30^{o} C = 30 + 273 = 303 K$

$n = \frac{(1 a t m) (22.4 L)}{(0.082 L a t m / m o l e K) (303)}$

$n = 0.90 m o l e$