The rate of a reaction is expressed in different ways as follows
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The reaction is
The rate of elementary reaction, increases by 100 times when the concentration of is increased ten folds. The order of the reaction with respect to is:
For the reaction,,the initial concentration of was 0.20 mol and the concentration after 20 min was 0.20 mol .Then the rate of formation of in mol would be
The energies of activation for forward and reverse reactions for are 180 kJ and 200 kJ respectively. The presence of a catalyst lowers the activation energy of both (forward and reverse) reactions by 100 kJ . The enthalpy change of the reaction () in the presence of catalyst will be (in kJ )