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    The constant pressure molar heat capacity of nitrogen gas, N2, is 29.125 J K−1 mol−1 at 298.15 K. Calculate the change in the internal energy when 2.00 mol of nitrogen gas is heated so that its temperature increases by 25.0°C. You may assume that the value of the heat capacity does not vary with temperature.

    I have 0 idea where to start, I did try use the Cm=deltaU/deltaT but i didn't get the right answer, please help if you can!
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    Try Q = m c delta T ?
 
 
 
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Updated: November 10, 2015
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