In a 1 st order reaction, reactant concentration C varies with time t as :

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In a 1 st order reaction, reactant concentration $C$ varies with time $t$ as :

ChemistryChemical KineticsBITSATBITSAT 2021

Options:

A $\frac{1}{\mathrm{C}}$ increases linearly with $t$
B $\log \mathrm{C}$ decreases linearly with $t$
C C decreases with $\frac{1}{t}$
D $\log \mathrm{C}$ decreases with $\frac{1}{t}$

Solution:

2134 Upvotes Verified Answer

The correct answer is: $\log \mathrm{C}$ decreases linearly with $t$

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