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Question
Explain the following terms :
Half life period of a reaction (t1/2)
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Solution
Half life period of a reaction (t1/2)
The half life of a reaction is the time period in which the concentration of a reactant is reduced to one half of its initial concentration.
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RELATED QUESTIONS
The rate constant of a first order reaction increases from 2 × 10−2 to 4 × 10−2 when the temperature changes from 300 K to 310 K. Calculate the energy of activation (Ea).
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(i) energy is always released
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| Column I | Column I | |
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| (iv) | `e^((-E_a)/(RT)` | (d) is same as the first |
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| (vi) | Area under the Maxwell Boltzman curve is constant | (f) refers to the fraction of molecules with energy equal to or greater than activation energy |
In respect of the eqn k = \[\ce{Ae^{{-E_a}/{RT}}}\] in chemical kinetics, which one of the following statement is correct?
Explain how and why will the rate of reaction for a given reaction be affected when the temperature at which the reaction was taking place is decreased.
What happens to the rate constant k and activation energy Ea as the temperature of a chemical reaction is increased? Justify.
Which plot of ln k vs `1/T` is consistent with the Arrhenius equation?
