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Describe how does the enthalpy of reaction remain unchanged when a catalyst is used in the reaction . |
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Answer» Solution :When the reaction is carried out in presence of catalyst the ENTHALPY of reactant `H_(R)` and enthalpy of product `H_(p)` remian as it is without CHANGE .Enthalpy of reaction means change in enthalpy `Delta_(r)H` which does not change. `Delta_(r)H=(H_(P)-H_(R))`  In presence of catalyst height of GRAPH DECREASES.Potential barrier decreases but energy of reactant and product does not change.`DeltaH` remain as it as. |
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