 |  Kinetics 42 Flashcards |  Start |
 | What is the rate of reaction defined as? |  Card: 1 / 42 |
| The change in concentration of a reactant or product per unit time. | Card: 2 / 42 |
| True or False: The rate law must be determined experimentally. | Card: 3 / 42 |
| True. Reaction order is not always related to stoichiometric coefficients. | Card: 4 / 42 |
| For a first-order reaction, what is the half-life formula? | Card: 5 / 42 |
| T₁/₂ = 0.693/k. | Card: 6 / 42 |
| Fill in the blank: The Arrhenius equation relates the rate constant to _____ and temperature. | Card: 7 / 42 |
| Activation energy. | Card: 8 / 42 |
| What is the molecularity of the reaction A + B → products? | Card: 9 / 42 |
| Bimolecular. | Card: 10 / 42 |
| What happens when activation energy is decreased by a catalyst? | Card: 11 / 42 |
| The reaction rate increases. | Card: 12 / 42 |
| Multiple Choice: Which type of reaction is rare? A) Unimolecular B) Bimolecular C) Termolecular D) Zero-order | Card: 13 / 42 |
| C) Termolecular | Card: 14 / 42 |
| What defines a zero-order reaction? | Card: 15 / 42 |
| The rate is constant and independent of reactant concentration. | Card: 16 / 42 |
| How do you determine the order of a reaction? | Card: 17 / 42 |
| By testing integrated rate equations and examining concentration changes. | Card: 18 / 42 |
| What is the difference between a CSTR and a PFR? | Card: 19 / 42 |
| CSTR operates at steady state; PFR has no back-mixing. | Card: 20 / 42 |
| Fill in the blank: The effectiveness factor accounts for _____ in porous catalysts. | Card: 21 / 42 |
|  Unlock all Flashcards with EduRev Infinity Plan Starting from @ ₹99 only | |
| Diffusion limitations. | Card: 22 / 42 |
| What is the overall order of the reaction if rate = kC_A^2C_B? | Card: 23 / 42 |
| Third-order (2+1). | Card: 24 / 42 |
| True or False: The half-life of a first-order reaction depends on initial concentration. | Card: 25 / 42 |
| False. It is independent of initial concentration. | Card: 26 / 42 |
| What is the purpose of a Lineweaver-Burk plot? | Card: 27 / 42 |
| To linearize the Michaelis-Menten equation. | Card: 28 / 42 |
| Scenario: You measure a reaction's activation energy. What does this indicate about the reaction? | Card: 29 / 42 |
| It indicates how sensitive the reaction rate is to temperature changes. | Card: 30 / 42 |
| What comes next in this sequence: Zero-order, first-order, _____? | Card: 31 / 42 |
| Second-order. | Card: 32 / 42 |
| Fill in the blank: In chain reactions, the initiation stage forms _____ intermediates. | Card: 33 / 42 |
| Reactive. | Card: 34 / 42 |
| What causes the increase in reaction rate in enzyme-catalyzed reactions? | Card: 35 / 42 |
| Formation of enzyme-substrate complexes. | Card: 36 / 42 |
| What type of reaction mechanism does the Arrhenius equation represent? | Card: 37 / 42 |
| Temperature dependency of reaction rates. | Card: 38 / 42 |
| How are activation energy and rate constant related? | Card: 39 / 42 |
| Higher activation energy results in a lower rate constant at a given temperature. | Card: 40 / 42 |
| What is the difference between homogeneous and heterogeneous catalysis? | Card: 41 / 42 |
| Homogeneous: same phase; Heterogeneous: different phases. | Card: 42 / 42 |
| Completed! Keep practicing to master all of them. |  Restart |
