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## Homework Statement

A cylinder contains 260 L of hydrogen gas (H2) at 0.0° C and a pressure of 10.0 atm. How much energy is required to raise the temperature of this gas to 28.0° C? give answer in kJ.

## Homework Equations

C=Q/(delta)T and/or PV=nRT

## The Attempt at a Solution

using the first equation I got an answer of 63.5 which is incorrect. I am not sure how to place the given values into the second equation because I don't know what R stands for.

the attempt with the second equation: (10.0 x 101.3)(260)=nR(28)

1013*260=nR28

263380=nR28

9406.428571 =nR

????????????

Thanks in advance.