Q.

A certain sample of gas has a volume of  0.2  litre measured at 1 atm pressure and 0°C. At the same pressure but 273°C, its volume will be:

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a

0.4  litres

b

0.8 litres

c

27.8  litres

d

55.6 litres

answer is A.

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Detailed Solution

. Since pressure is the same, it is Charle' s law                        V1=0.2L,  T1=0+273=273K;v2=?  T2=273+273= 546K.V1T1=V2T2;  V2=V1T1×T2V2=0.2L×546K273K=0.4L
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