81. A catalyst in a chemical reaction __________ free energy change in the reaction.
82. The rate of a homogeneous reaction is a function of
83. Space time equals the mean residence time
84. An imbalanced chemical reaction equation is against the law of
85. Reverse reaction in a chemical equilibrium is favoured by the
86. For an isothermal second order aqueous phase reaction, A → B, the ratio of the time required for 90% conversion to the time required for 45% conversion is
87. A batch adiabatic reactor at an initial temperature of 373°K is being used for the reaction, A → B. Assume the heat of reaction is - 1kJ/mole at 373°K and heat capacity of both A and B to be constant and equal to 50J/mole.K. The temperature rise after a conversion of 0.5 will be
88. Carrier in a catalyst increases its
89. The dimensions of rate constant for reaction 3A → B are (l/gm mole)/min. Therefore the reaction order is
90. Rate determining step in a reaction consisting of a number of steps in series is the __________ step.
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