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My question is clear in the title . Why is the heat capacity at constant pressure different from that at constant volume for the same substance?


marked as duplicate by Brian Moths, ZeroTheHero, Jon Custer, Floris, sammy gerbil May 16 '17 at 23:19

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    $\begingroup$ Hint: What usually happens to a material when you heat it up? $\endgroup$ – lemon May 16 '17 at 16:24
  • $\begingroup$ A Clear answer is given at en.wikipedia.org/wiki/Heat_capacity $\endgroup$ – user154420 May 16 '17 at 16:38

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