A reaction known to release heat of four kilo joules takes, Ask an Expert

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A reaction known to release heat of four kilo joules takes place in a calorimeter containing two Litres of solution and the temperature increased by 6.14 degree celsius. When hydrochloric acid of 200 mL was mixed to a small piece of CaCO3 in the same calorimeter, the temperature increased by 4.25 degree celsius. determine the heat output for this reaction?

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