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A catalyst alters the rate of a reaction...

A catalyst alters the rate of a reaction by leading of increasing the energy of activation, In Heterogeneus catalysis adrosption mechanism occurs and Hemogeneus. Catalysis intermediate formation occurs. In auto catalysis one of the products acts on catalyst.
The `DeltaH` of a reaction `A + B to C` is d`-20 KJ mol^(-1)`. When a catalyst is used. What is `DeltaH` for the reaction without catalyst (magnitude) 

A

`lt 20 KJ`

B

`gt 20 KJ `

C

`20 KJ `

D

Depends on catalyst

Text Solution

Verified by Experts

The correct Answer is:
C
Catalyst does not change `DeltaH` of the reaction
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Knowledge Check

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