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A cylinder of fixed capacity of 44.8 lit...

A cylinder of fixed capacity of 44.8 litres contains helium gas at standard temperature and pressure. The amount of heat needed to raise the temperature of gas in the cylinder by `20.0^@C` will be : (Given gas constant `R=8.3 JK^(-1)"mol"^(-1)` )

A

249 J

B

415 J

C

498 J

D

830 J

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