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Question

The volume of 0.5 mole of gas at 1 atm pressure and 273oC temperature is :

A
22.4
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B
11.2
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C
44.8
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D
5.6
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Solution

The correct option is A 22.4
Volume=V=?
Pressure=P=1atm.
Temperature=t=273oC
T=546K
where R is universal gas constant with a value of 0.0821 lit-atm/mol/kelvin.
V=nRTP.....(1)
Substituting the value from the data in equation (1), we get
V=0.5×0.0821×5461=22.4litres

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