One mole of caco3s is placed in an evacuated cylinder that, Ask an Expert

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One mole of CaCO3(s) is placed in an evacuated cylinder that is fitted with a frictionless piston. It is heated to 800 degrees C at which point it decomposes to CaO(s) and CO2(g). Calculate the work done assuming complete decomposition at 1.00 bar. How much work would be done if there was no piston and the container was open to the atmosphere?

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