Chemical Kineti...

How many times the rate of reaction increases at 20⁰C for a reaction having the activation energies in the presence and absence of catalyst as 50 kJ/mol and 75 kJ/mol?

If E_f and E_b are the activation energies of the forward and reverse reactions and the reaction is known to be exothermic, then:

The ratio of the rate constant of a reaction at two temperatures differing by __________0C is called temperature coefficient of reaction.

The effect of temperature on reaction rate is given by

The activation energies of two reactions are given as E_a1= 40 J and E_a2= 80 J, then the relation between their rate constants can be written as:

The activation energy of a chemical reaction can be determined by

The rate constant, activation energy and Arrhenius parameter of a chemical reaction at 25°C are 3.0 x 10^-4 s^-1, 104.4 kJ mol^-1 and 6.0 x 10¹⁴ s^-1 respectively. The value of the rate constant at infinite temperature is is

 The plot of ln k vs 1/T is a straight line. The slope of the graph is:

For a chemical reaction the rate constant is nearly doubled with the rise in temperature by

 The reactions with low activation energy are