Chapter 10: Problem 13
What if energy was not conserved? How would this affect our lives?
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Chapter 10: Problem 13
What if energy was not conserved? How would this affect our lives?
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What is meant by the term driving forces? Why are matter spread and energy spread considered to be driving forces?
Does the entropy of the system increase or decrease for each of the following? Explain. a. the evaporation of alcohol b. the freezing of water c. dissolving \(\mathrm{NaCl}\) in water
A friend of yours reads that the process of water freezing is exothermic. This friend tells you that this can't be true because exothermic implies "hot," and ice is cold. Is the process of water freezing exothermic? If so, explain this process so your friend can understand it. If not, explain why not.
How is Hess's law a restatement of the first law of thermodynamics?
Consider the processes $$ \begin{array}{l} \mathrm{H}_{2} \mathrm{O}(g) \rightarrow \mathrm{H}_{2} \mathrm{O}(l) \\ \mathrm{H}_{2} \mathrm{O}(l) \rightarrow \mathrm{H}_{2} \mathrm{O}(g) \end{array} $$ a. Which process is favored by energy spread? Explain. b. Which process is favored by matter spread? Explain. c. How does temperature affect which process is favored? Explain.
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