Q.

2NH3g→Pt1130K,HighP N2g+3H2g   This reaction is an example of

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a

Zero order reaction

b

First order reaction

c

Second order reaction

d

Third order reaction

answer is A.

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Detailed Solution

At high pressure metal surface is saturated with gas molecules. So further change in reaction conditions is unable to alter the amount of ammonia on the surface of catalyst;∴ rate is independent of concentration changes of  NH3;It is a zero order reaction
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