Thermochem graph calculate work internal energy and added heat

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    Look at the graph and answer the questions below. The graph of pressure P versus V shows the expansion of 2.0 moles of a monatomic ideal gas from state A to state B. Pa=Pb=600N/m^2, Va = 3.0m^3 and Vb = 9.0m^3.

    1. Calculate the work done BY THE GAS as it expands.

    2.Calculate the change in internal energy of the gas as it expands.

    3.Calculate the heat added to or removed from the gas during this expansion.

    Any help would be great thanks.
     
  2. jcsd
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