please help me, physics

Five moles of a monatomic ideal gas expand adiabatically, and its temperature decreases from 410 to 200 K.

(a) What is the work done by (or done to) the gas? Include the algebraic sign.
J

(b) What is the change in the internal energy of the gas? Include the algebraic sign.
J

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asked by leah
  1. a. w = _ 13094,55 b. e = _ 13094,55

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    posted by pretty

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