If concentration of a first order reaction is increased by 'x' times then rate constant (k) becomes 
a) e-k/x
b) x/k
c) k
d) ek/x

Dear Student,

The computation are expressed below,

ln [Ao][A]=ktwhen increased by x,ln (x) = kt   by taking anti-ln we get, ekxHence the asnwer is Option (D)
Regards.
 

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