Conceptual Physical Science Explorations
2nd Edition
ISBN: 9780321567918
Author: Paul G. Hewitt, Leslie A. Hewitt, John A Suchocki
Publisher: Addison Wesley
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Question
Chapter 20, Problem 9TE
To determine
Whether the refrigerator prevents or delays the spoilage of food.
Expert Solution & Answer
Answer to Problem 9TE
Yes, the refrigerator helps to delay or prevent the food to get spoiled.
Explanation of Solution
The activation energy is the minimum required energy barrier which when passed by the reactant molecule can get converted into the product molecule to complete the reaction.
The activation energy of the reaction tends to decrease if the temperature is reduced. The
Thus, the food is usually stored in the refrigerator. By lowering the temperature in the refrigerator, the rate of the growth of fungus or any bacteria generation on the food material is reduced which prevents the spoilage of food.
Thus, the refrigerator provides the condition which is suitable for the storage of food material.
Conclusion:
Therefore, the refrigerator helps to delay or prevent the food to get spoiled.
Chapter 20 Solutions
Conceptual Physical Science Explorations
Ch. 20 - Prob. 1RQCh. 20 - Prob. 2RQCh. 20 - Prob. 3RQCh. 20 - Prob. 4RQCh. 20 - Prob. 5RQCh. 20 - What generally happens to the rate of a chemical...Ch. 20 - Which reactant molecules are the first to pass...Ch. 20 - What term is used to describe the minimum amount...Ch. 20 - What catalyst is effective in the destruction of...Ch. 20 - What is the purpose of a catalytic converter?
Ch. 20 - Prob. 11RQCh. 20 - What net effect does a chemical reaction have on a...Ch. 20 - Why are catalysts so important to our economy?Ch. 20 - Prob. 14RQCh. 20 - Is there any energy consumed at any time during an...Ch. 20 - What is released by an exothermic reaction?Ch. 20 - What is absorbed by an endothermic reaction?Ch. 20 - As energy disperses, where does it go?Ch. 20 - What is always increasing?Ch. 20 - Prob. 20RQCh. 20 - Prob. 1TCCh. 20 - Rank the following covalent bonds in order of...Ch. 20 - Prob. 1TECh. 20 - Prob. 5TECh. 20 - What two aspects of a collision between two...Ch. 20 - Why does a glowing splint of wood burn only slowly...Ch. 20 - Why is heat often added to chemical reactions...Ch. 20 - Prob. 9TECh. 20 - Prob. 10TECh. 20 - Prob. 11TECh. 20 - Prob. 12TECh. 20 - Prob. 13TECh. 20 - Prob. 14TECh. 20 - Under what conditions will a hot pie not lose heat...Ch. 20 - Prob. 16TECh. 20 - Exothermic reactions are favored because they...Ch. 20 - What role does entropy play in chemical reactions?Ch. 20 - A gardener finds weeds growing all by themselves...Ch. 20 - Prob. 20TECh. 20 - Use the bond energies in Table 20.1 and the...Ch. 20 - Use the bond energies in Table 20.1 and the...Ch. 20 - Prob. 1RATCh. 20 - Prob. 2RATCh. 20 - Prob. 3RATCh. 20 - Prob. 4RATCh. 20 - The yeast in bread dough feeds on sugar to produce...Ch. 20 - What can you deduce about the activation energy of...Ch. 20 - What role do CFCs play in the catalytic...Ch. 20 - Prob. 8RATCh. 20 - How much energy, in kilojoules, is released or...Ch. 20 - Prob. 10RAT
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