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Free Online Mock Chemistry Multiple Choice Test on Chemical Kinetics
Sub Category : Chemical Kinetics Test : 9 Time Left :
1) The activation energy for most of the reaction is approximately 50 kJ mol-1. The value of temperature coefficient for such reaction will be (1)Almost equal to 2 (2) Almost equal to 3 (3) Less than 1 (4) Greater than 4.
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2) The rate of a certain reaction increases by 2.3 times when the temperature is raised from 300 K to 310 K. If k is the rate constant at 300 K then the rate constant at 310 K will be equal to (1)2k (2)k (3)2.3 k (4)3k2
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3) The activation energy for the forward reaction X->Y is 60 kJ mol-1 and DeltaH is-20 kJ mol-1, the activation energy for the reverse reaction is (1) 40 kJ mol-1 (2) 60 kJ mol-1 (3) 80 kJ mol-1 (4) 20 kJ mol-1
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4) Which of the following expressions give the effect of temperature on the rate constant?(1)ln A=RT ln Ea–ln k (2) ln k=ln A-Ea/RT (3)k= AEa/RT (4) None of these.
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5)The effect oftemperature on reaction rate is given by
(1) Clausius Clapeyron equation (2) Arrhenius equation (3) Gibb's Helmholtz equation (4) Kirchoff's equation.
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