Chemical Kinetics questions
1373 published questions with worked solutions.
- For the elementary step, (CH_3)_3CBr(aq) (CH_3)_3C^+(aq)+Br^-(aq) the molecularity is:
- The rate of chemical reaction depends on the nature of chemical reactions, because:
- Effective collisions are those in which molecules must:
- If the concentration units are reduced by n times, then the value of rate constant of first order will:
- If a is the initial concentration then time required to decompose half of the substance for nth order is inversely proportional...
- The reaction obeys I order with respect to H_2 and ICl both: H_2(g)+2ICl(g) 2HCl(g)+I_2(g). Which of the following mechanism is...
- Consider the reaction N_2(g)+3H_2(g) 2NH_3(g). The equality relationship between d[NH_3] dt and - d[H_2] dt is:
- For producing the effective collisions the colliding molecules must have:
- In a reaction, the rate expression is, rate =K[A][B]^ 2/3 [C]^0, the order of reaction is:
- The Arrhenius equation expressing the effect of temperature on the rate constant of reaction is:
- The burning of coal represented by the equation; C(s)+O_2(g) CO_2(g). The rate of this reaction is increased by:
- In the reaction BrO_3^-(aq)+5Br^-(aq)+6H^+ 3Br_2(l)+3H_2O(l). The rate of appearance of bromine (Br_2) is related to rate of...
- A graph plotted between concentration of reactant consumed at any time (x) and time t is found to be a straight line passing...
- If the rate of reaction between A and B is given by, rate =K[A][B]^n, then the reaction is:
- Which statement about molecularity of a reaction is wrong?
- The half life for a reaction _ _ _ _ _ of temperature.
- In Arrhenius equation K=Ae^ -E_a/RT , the quantity -E_a/RT is referred as:
- According to collision theory:
- If concentration of reactants is increased by 'X', the rate constant K becomes:
- Rate constant of a chemical reaction can be kept constant by:
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