A. Higher temperature
B. More energy
C. Less energy
D. Same energy
Related Mcqs:
- Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is ?
A. 0
B. 1
C. 2
D. 3 - In a reversible chemical reaction having two reactants in equilibrium, if the concentration of the reactants are doubled, then the equilibrium constant will________________?
A. Remain the same
B. Be halved
C. Also be doubled
D. Become one fourth - For the chemical reaction P → Q, it is found that the rate of reaction doubles as the concentration of ‘P’ is doubled. If the reaction rate is proportional to Cp n, then what is the value of ‘n’ for this chemical reaction ?
A. 0
B. 1
C. 2
D. 3 - Rate of a chemical reaction is independent of the concentration of the reactants for a _________________ reaction?
A. Zero order
B. Third order
C. Consecutive
D. None of these - What is the order of a chemical reaction in which doubling the initial concentration of the reactants doubles the half life time of the reaction ?
A. 0
B. 1
C. 2
D. 3 - The excess energy of reactants in a chemical reaction required to dissociate into products is termed as the _______________ energy?
A. Activation
B. Potential
C. Binding
D. Threshold - In an exothermic reaction, the energy of the reacting substances as compared to that of products is____________________?
A. More
B. Less
C. Same
D. Either A. or B., depends on order of reaction - In a chemical reaction, represented by as shown in the bellow figure, it is observed that the (i) Rate of reaction increases by a factor of 4 on doubling the concentration of the reactant. (ii) Rate of reaction increases by a factor of 9 on trebling the concentration of the reactant. Then the rate of the reaction is proportional to(where, CA = concentration of the reactant)_____________________?
A. CA
B. CA2
C. CA3
D. CA4 - Fractional conversion _________________ for an exothermic reversible chemical reaction, when the temperature is maximum?
A. Increases
B. Remains unchanged
C. Decreases
D. Unpredictable from the data - If the time required to complete a definite fraction of reaction varies inversely as the concentration of the reactants, then the order of reaction is________________?
A. 1
B. 2
C. 3
D. 4
