Chemistry: Principles and Reactions
8th Edition
ISBN: 9781305079373
Author: William L. Masterton, Cecile N. Hurley
Publisher: Cengage Learning
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Chapter 8, Problem 66QAP
Interpretation Introduction
Interpretation:
The walking time required to burn the calories consumed through a can of cola needs to be calculated.
Concept introduction:
Chemical reactions proceed with the absorption (endothermic) or evolution (exothermic) of energy. This energy is usually expressed in SI units of Joules. Another unit is calorie where, 1 cal = 4.184 J- Nutritional calorie is the energy content of food items where:
1 nutritional calorie = 1 kcal
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k₁
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(B). the rate law with respect to R:
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Given the reaction R+ Q → P, indicate
(A). the rate law with respect to P:
(B). the rate law with respect to R:
(C). the rate law with respect to Q:
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The reaction for obtaining NO2 from NO and O2 has the rate equation: v = k[NO]2[O2]. Indicate which of the following options is correct.(A). This rate equation is inconsistent with the reaction consisting of a single trimolecular step.(B). Since the overall order is 3, the reaction must necessarily have some trimolecular step in its mechanism.(C). A two-step mechanism: 1) NO + NO ⇄ N2O2 (fast); 2) N2O2 + O2 → NO2 + NO2 (slow).(D). The mechanism must necessarily consist of three unimolecular elementary steps with very similar rate constants.
Chapter 8 Solutions
Chemistry: Principles and Reactions
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