1.

A reaction : A + B rarr C follows the rate law as shown : R=10^(-2) [A] [B] M/sec. Calculate time required for concentration of [B] to reduce to one fourth of its original value if initially A and B are taken at 3 M and 3.2 M respectively.

Answer»

`("LN"(5)/(4))XX(1)/(2xx10^(-3))SEC`
`("ln 5")xx(1)/(2)sec`
`"ln 4"xx(1)/(2xx10^(-3))sec`
`"ln 5"xx(1)/(2xx10^(-2))sec`

ANSWER :A


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