Practice free Chemical Kinetics (Chemistry) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
For a reaction $ 2A + B \rightarrow Products $ , the active mass of B is kept constant and that of A is doubled. The rate of reaction will then
increase 4 times
The conversion of $ A \rightarrow B $ follows second order kinetics. Doubling the concentration of A will increase the rate of formation B by a factor of
$ 4 rate = K [A] ^2 $ $ \therefore rate = K [2A] ^2 = 4.K [A]^ 2 $
Ethyl acetate is hydrolysed in alkaline medium, its order of a reaction and molecularity are respectively
$ 2 , 2 CH_3 COOC_2H_5 + NaOH \rightarrow CH_3 COONa + C_2 H_5 OH $
According to the Arrhenius equation a straight line is to be obtained by plotting the logarithm of the rate constant of a reaction against ...
1 /T
The given reaction $ 2FeCl_3 + Sn Cl_2 \rightarrow 2 FeCl_2 + SnCl_4 $ is an example of ______ reaction
third order
In the reverable reaction $ 2 NO_2 \rightleftharpoons N_2 O_4 $ , the rate of disappearence of $ NO_2 $ is equal to ….
$ 2 K_1 [NO_2] ^ 2 - 2k_2 [N_2 O_4 ] $ $ For 2 NO_2 \rightleftharpoons N_2 O_4 $ $ Rate = - { 1 \over 2} { d [NO_2] \over dt} = K_1 [NO_2 ]^2 -K_2 [N_2 O_4 ] $ $ \therefore rate = { -d[NO_2 ] \over dt } = 2 K_1 [ NO_2 ]^2 - 2K_2 [N_2 O_4 ] $
If concentration of reactants is increased by ‘x’, then rate constant K becomes .
K
The rate constant is given by equation $ K = p.z.e^{-Ea/RT } $ which factor should register a decrease for the reaction to proceed more rapidly ?
E
For the reaction $ A + B \rightarrow C $ . the unit of rate constant is
$ sec^ {-1} mole ^ { -1} L $ $ \therefore Second order reaction $
The rate of the gaseous reaction is equal to K[A][B]. The volume of the vessel is suddenly reduced to one forth of the initial volume. The rate of reaction would be ...
16 / 1 Volume of the vessel is reduced to one foreth Concentration becomes 4 times
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