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Chemical Kinetics

Short Answer Type

51. The slope of line in the graph log k vs

\frac{1}{T}

for a reaction is - 5841. Calculate the energy of activation.

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52. Define half-life of a reaction?

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53. For a reaction A + H₂O → B rate α[A]. What is its (i) molecularity, (ii) order of reactions?

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54. Identify the order if unit of rate constant is L mol^–1 s^–1?

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55. What is the significance of rate constant in a rate law?

Rate constant is the rate of the reaction when the concentration of each reaction is unity. Greater the value of the rate constant, faster is the reaction.

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56. What is the shape between log k vs. 1/ T? What is the relationship between its slope and activation energy (Ea) ?

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57. The following graph is a plot of t_1/2 and concentration. What is the order of the reaction?

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58. Out of the zero, first and second order reactions which has the same units for rate of the reaction and rate constant.

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59. State two factors which affect the rate of a chemical reaction.

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60. When the rate of the reaction becomes equal to the specific reaction rate?

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