Chemical Kinetics questions
1373 published questions with worked solutions.
- Milk turns sour at 40°C three times as fast as at 0°C. The energy of activation for souring of milk is:
- The rate constant of a first order reaction is 4 10^ -3 ,sec^ -1 . At a reactant concentration of 0.02 M, the rate of reaction...
- A first order reaction is carried out with an initial concentration of 10 mole per litre and 80% of the reactant changes into the...
- Hydrogenation of vegetable ghee at 25°C reduces pressure of H_2 from 2 atm to 1.2 atm in 50 minute. The rate of reaction in terms...
- A first order reaction has a half-life period of 69.3 sec. At 0.10 mol litre^ -1 reactant concentration, rate will be:
- 2A B+C; It would be a zero order reaction when:
- Which order of reaction obeys the relation t_ 1/2 =1/Ka?
- The bromination of acetone that occurs in acid solution is represented by this equation. CH_3COCH_3(aq)+Br_2(aq)...
- A substance undergoes first order decomposition. The decomposition follows parallel first order reactions as: A K_1=1.26 10^ -4...
- What fraction of a reactant showing first order remains after 40 minute if t_ 1/2 is 20 minute?
- The rate constant (K) for the reaction 2A+B was found to be 2.5 10^ -5 litre mol^ -1 sec^ -1 after 15 sec, 2.60 10^ -5 litre mol^...
- Which rate expression suggests an overall order of 0.5 for the reaction involving substances X,Y,Z?
- In gaseous reactions important for the understanding of the upper atmosphere H_2 and O react bimolecularly to form two OH...
- For a I order reaction A B the reaction rate at reactant concentration 0.01 M is found to be 2.0 10^ -5 ,Ms^ -1 . The half-life...
- Consider the chemical reaction, N_2(g)+3H_2(g) 2NH_3(g). The rate of this reaction can be expressed in terms of time derivative...
- In a first order reaction the a/(a-x) was found to be 8 after 10 minute. The rate constant is:
- The order of a gaseous phase reaction for which rate becomes half if volume of container having same amount of reactant is...
- For the reaction; 2N_2O_5 4NO_2+O_2, rate and rate constant are 1.02 10^ -4 ,M ,sec^ -1 and 3.4 10^ -5 ,sec^ -1 respectively,...
- How much faster would a reaction proceed at 25°C than at 0°C if the activation energy is 65 kJ?
- A reactant with initial concentration 1.386 mol litre^ -1 showing first order change takes 40 minute to become half. If it shows...
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Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration