By which can activation energy be calculated?
1. At a constant temperature
2. At two different temperature
3. For reversible reaction
4. For volatile reaction
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen a biochemical reaction is carried out in a laboratory outside the human body in the absence of an enzyme, then the rate of reaction obtained is times. The activation energy of a reaction in the presence of an enzyme is:
1.
2. P is required.
3. Different from obtained in the laboratory.
4. Data is insufficient.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe activation energy for a simple chemical reaction A → B is Ea in a forward direction. The activation energy for the reverse reaction:
1. Is negative of Ea
2. Is always less than Ea
3. Can be less than or more than Ea
4. Is always double of Ea
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe temperature dependence of the rate constant (k) of a chemical reaction is written in terms of the Arrhenius equation,
k = A.e–E*/RT. The activation energy (E*) of the reaction can be calculated by plotting:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology