The following data are obtained from the decomposition of a gaseous compound
Initial pressure, atm 1.6 0.8 0.4
Time for 50% reaction, min 80 113 160
The order of the reaction is
For a given reaction the concentration of the reactant plotted against time gave a straight line with negative slope.
The order of the reaction is-
The rate constant of a first order reaction is generally determined from a plot of
(A) Concentration of reactant vs time t
(B) log (concentration of reactant) vs time t
(D) Concentration of reactant vs log time t
Which of the following correctly represents the variation of the rate of the reaction with temperature ?
The plot of log k versus is linear with a slope of
If a reaction A + B C is exothermic to the extent of 30 kJ/mol and the forward reaction has an activation energy 70 kJ/mol, the activation energy for the reverse reaction is
(A) 30 kJ/mol
(C) 70 kJ/mol
(D) 100 kJ/mol
A first order reaction takes 40 min for 30% decomposition.Calculate
(A) 77.7 min.
(B) 27.2 min.
(C) 55.3 min.
(D) 67.3 min.
For a certain reaction involving a single reactant, it is found that is constant where is the initial concentration of the reactant and T is the half-life. What is the order of the reaction ?
Concept Questions :-
The high temperature ( 1200K) decomposition of (g) occurs as follows as per simultaneous 1st order reactions.
What would be the % of by mole in the product mixture (excluding) ?
(D) it depends on time
The reaction , A(g) + 2B(g) C(g) + D(g) is an elementary process. In an experiment, the initial partial pressure of A and B are = 0.60 and = 0.80 atm. When = 0.2atm the rate of reaction relative to the initial rate is