Question

Which is not a characteristic of a catalyst?
 A.It changes the equilibrium constant
 B.It alters the reaction path
 C.It increases the rate of reaction
 D.It increases the average K.E. of the molecule

Answer 1

Hint: We need to realize that, catalyst is a compound that is vital for a synthetic response to happen. On the off chance, that follows up on the two kinds of reaction, for instance, reversible and non-reversible. So the harmony stays as before for a reaction.

Complete answer:
We can characterize the term catalyst as a substance that can accelerate a synthetic reaction without itself going through any in its mass and piece toward the finish of the compound reaction and this wonder is known as catalysis.
There are a few properties of the impetus and these are given underneath:
Indeed, even a limited quantity of the catalyst is adequate to achieve a huge change in the pace of reaction.
A catalyst can't start the reaction however it can speed up the pace of reaction. As such, it catalyzes an unconstrained reaction and doesn't catalyze a non-unconstrained response.
It doesn't modify the free energy change of the reaction and can be addressed as delta G.
It doesn't adjust the enthalpy change of the reaction and can be addressed as delta H.
An impetus happens in the reaction yet is recovered with no synthetic change toward the finish of the reaction.
For a reversible reaction, it speeds up the speed of forward reaction just as that of reverse reaction similarly. Henceforth, it doesn't upset the harmony, for instance doesn't change the balance steady of the reaction yet essentially assists with achieving that balance rapidly.

Therefore, the correct option is (A) it changes the equilibrium constant.

Note:
We need to realize that, a few instances of catalyst. That must be given, when Fischer-Tropsch measures iron or cobalt is utilized as a catalyst, in the polymerization of ethene Ziegler-Natta impetus, in Haber's interaction iron is utilized as catalyst.