1.

At high pressure, the following reaction is of zero order. 2" NH"_(3)(g)overset(1130"K")underset("Platinum catalyst")to" N"_(2)(g)+3" H"_(2)(g) Which of the following options are correct for this reaction ?

Answer»

Rate of reaction = Rate CONSTANT
Rate of the reaction depends on concentration of ammonia
Rate of decomposition of ammonia will REMAIN constant until ammonia disappears completely
Further increase in pressure will change the rate of reaction.

Solution :For zero order reaction, Rate `=k[A]^(0)=k.` Hence, (a) is correct. Rate of zero order reaction is independent of concentration of reactants. Hence, (b) is WRONG.
For the same reason, ( c ) is correct.
Rateof decomposition of a gas depends upon pressure. Hence, (d) is correct.


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