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    A Problem that Deals with Ideal Gases

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    For a certain ideal gas, Cv = 2.5R for all temperatures. Calculate q, w, ΔU and ΔH when 2.00 mol of this gas undergoes each of the following processes:
    (a) a reversible expansion at a constant pressure of 1 bar from a volume of 20.0 dm3 to 40.0 dm3.
    (b) a reversible isothermal compression from (0.50 bar, 40.0 dm3) to (1 bar, 20.0 dm3).

    There are so many aspects with this problem that I dont know where to start let alone how to finish. Any help would be greatly appreciated.

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    https://brainmass.com/chemistry/energetics-and-thermodynamics/problem-deals-ideal-gases-227566

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