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Fundamentals of thermodynamics

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Question

x g sample of NH4NO3 is decomposed in a Bomb calorimeter. The temperature of calorimeter increase by 4°C. The heat capacity of the system is 1.25 kJ/°C. Calculate the value of x. 
Given molar heat of decomposition of NH4NO3 at constant volume is 400 kJ mol. 

Moderate
Solution

Qv=1.25×4=5Qv=5=x80×400

 x=1


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