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Heat of reaction is defined as the amount of heat absorbed or evolved at a given temperaturewhen the reactants have combined to form the products is represented by a balanced chemcial equation. If the heat is denofed by q then the numerical value of q depends on the manner in which the reaction is performed for the two methods of conducting chemical reactions in calorimeters. Constant volume W = 0 and `q_(v) = Delta E` Bomb calorimeter Constant pressure W = - V `Delta`P, therefore `q_(P) = Delta E + P Delta V rar (V. Delta P)` The heat capacity of a bomb calorimeter is 300 JK When 0.16 gm of methane was burnt in this calorimeter the temperature rose by `3^(@)`C. The value of `Delta`U per mole will beA. 100 kJB. 90 kJC. 900 kJD. 48 kJ

Answer» Correct Answer - B


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