What is the temperature change if 84 joules of heat are, Ask an Expert

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What is the temperature change If 84 joules of heat are added to a pure gold coin with a mass of fifteen grams? It is given that the Specific heat capacity of Au= 0.128

A boy places a diatomic gas of 59.5 grams into a ten litres container at the temperature of 25 degree celsius and measures the pressure to be 2.053 atm. conclude the identity of this diatomic gas.

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