Interpretation Introduction Interpretation: The true and false statement from the given options has to be determined. Explanation Reason for Correct options: (c) The higher activation energy gives a lower reaction rate. The given statement is true. As known, that activation energy is the minimum energy that the colliding molecules must exceed in order to react. If the activation energy is more, then the rate of the reaction is slow. If the activation energy is less, then the rate of the reaction is faster. Hence, the given statement is true. (l) The activation energy of any reaction is lessening by using catalyst. The given statement is true. The catalyst increases reaction rate by decreasing the activation energy of that reaction. (n) The orientation probability factor (p) is near 1 for reactions between single atoms. The given statement is true. Individual atoms are spherical, so reactions between them have p values near 1. (o) The initial rate of a reaction is its maximum rate. The given statement is true. The reaction rates depend to some extent on the concentrations of the reactant. The concentration of the reactant gradually decreases as the reaction proceeds and the concentration of the product increases. So reaction rate also decreases as the reaction proceeds. Hence, the initial rate of a reaction is its maximum rate. Hence, the correct options are (c), (l), (n), and (o). Reason for in-correct options: (a) At a given T, all molecules have the same kinetic energy. The given statement about the kinetic energy is false. As we know, temperature affects the kinetic energy, but at a particular T, depending upon the choice of frame of reference molecules have a range of kinetic energies. (b) Halving the P for a gaseous reaction doubles the rate. The given statement is false. According to the question, pressure is halved. As a result of which, the number of collisions per unit time will also be halved. So the reaction rate will be halved not doubled. (d) A temperature rise of 10 ∘ C doubles the rate of any reaction. The given statement is false. As the rate of reaction also depends upon the presence of enzymes. The increase in temperature may destroy the enzyme which will ultimately reduce their effectiveness. (e) If reactant molecules collide with greater energy than the activation energy, they change into product molecules. The given statement is false. As the statement is only fulfilling half of the requirement for a reaction to be happened. The molecules must possess the proper orientation

CHEMISTRY: MOLECULAR NATURE ALEKS ACCESS

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ISBN: 9781265335236

Author: SILBERBERG

Publisher: MCG

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Chapter 16, Problem 16.102P

Interpretation Introduction

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The true and false statement from the given options has to be determined.

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Chapter 16, Problem 16.101P

Chapter 16, Problem 16.103P

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CHEMISTRY: MOLECULAR NATURE ALEKS ACCESS

Ch. 16.2 - Balance the following equation and express the...Ch. 16.2 - Prob. 16.1BFP Ch. 16.3 - Prob. 16.2AFP Ch. 16.3 - Prob. 16.2BFP Ch. 16.3 - Find the rate law, the individual and overall...Ch. 16.3 - Prob. 16.3BFP Ch. 16.3 - Prob. 16.4AFP Ch. 16.3 - Prob. 16.4BFP Ch. 16.4 - Prob. 16.5AFP Ch. 16.4 - Prob. 16.5BFP

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