NEET UG CHEMISTRY MCQ: CHEMICAL KINETICS

1 Easy

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In a zero-order reaction for every

10^\circ C

rise of temperature, the rate is doubled. If the temperature is increased from

10^\circ C\;to\;100^\circ C

, the rate of the reaction will become:

View answer and explanation

Correct option: D

512 times

Option D (512 times) is correct because the rate doubles for every 10°C increase, and there are nine 10°C intervals between 10°C and 100°C, so the rate increases by a factor of 2⁹.

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If the reaction rate at a given temperature becomes slower then

\frac{1}{{{{\left[ A \right]}^2}}}

vs times are a straight line. Order of reaction is The rate constant

\left( {k'} \right)

of one of the reaction is found to be double that of the rate constant

\left( {k''} \right)

of another reaction. Then the relationship between the corresponding activation energies of the two reaction

\left( {{{E'}_a}\;\mathrm{and}\;{{E''}_a}} \right)

can be represented as Acid hydrolysis of sucrose is a Order of radioactive disintegration reaction is Temperature coefficient of a reaction is 2. When temperature is increased from

30^\circ C\;to\;100^\circ C

, rate of the reaction increases by