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A cylinder of fixed capacity 67.2 liters...

`A` cylinder of fixed capacity `67.2` liters contains helium gas at `STP` . Calculate the amount of heat required to rise the temperature of the gas by `15^(@)C` ? `(R=8.314 J mol^(-1)k^(-1))`

A

`561.19 J`

B

`570.9 J`

C

`580.9 J`

D

`590.9 J`

Text Solution

Verified by Experts

The correct Answer is:
A
We know that `1` mole of an ideal gas at `STP` occupies a volume of `22.4` litres. Thus the cylinder contains `3` moles of helium.
Heat required `=nC_(v)DeltaT=3xx(3)/(2)RDeltaT`
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