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Get Full Access to Chemistry: The Central Science - 14 Edition - Chapter 19 - Problem 19.23
Get Full Access to Chemistry: The Central Science - 14 Edition - Chapter 19 - Problem 19.23

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# ?The normal boiling point of $$\mathrm{Br}_{2}(l)$$ is $$58.8^{\circ} \mathrm{C}$$, and its molar enthalpy of vaporization is $$\Delta H_{\text {vap }} ISBN: 9780134414232 1274 ## Solution for problem 19.23 Chapter 19 Chemistry: The Central Science | 14th Edition • Textbook Solutions • 2901 Step-by-step solutions solved by professors and subject experts • Get 24/7 help from StudySoup virtual teaching assistants Chemistry: The Central Science | 14th Edition 4 5 1 399 Reviews 15 0 Problem 19.23 The normal boiling point of \(\mathrm{Br}_{2}(l)$$ is $$58.8^{\circ} \mathrm{C}$$, and its molar enthalpy of vaporization is $$\Delta H_{\text {vap }}=29.6 \mathrm{~kJ} / \mathrm{mol}$$.

(a) When $$\mathrm{Br}_{2}(l)$$ boils at its normal boiling point, does its entropy increase or decrease?

(b) Calculate the value of $$\Delta S$$ when 1.00 mol  of $$\mathrm{Br}_{2}(l)$$ is vaporized at $$58.8^{\circ} \mathrm{C}$$.

Text Transcription:

Br2(l)

58.8^{\circ} C

\Delta H_vap = 29.6 kJ/mol

\Delta S

Step-by-Step Solution:

Step 1 of 5) There are several examples of the stability of nuclei with magic numbers of nucleons. For example, the radioactive series in Figure 21.2 ends with the stable 206 82Pb nucleus, which has a magic number of protons (82). Another example is the observation that tin, which has a magic number of protons (50), has ten stable isotopes, more than any other element. Evidence also suggests that pairs of protons and pairs of neutrons have a special stability, analogous to the pairs of electrons in molecules. This evidence accounts for the observation that stable nuclei with an even number of protons and/or neutrons are far more numerous than those with odd numbers. The preference for even numbers of protons is illustrated in Figure 21.3, which shows the number of stable isotopes for all elements up to Xe. Notice that once we move past nitrogen, the elements with an odd number of protons invariably have fewer stable isotopes than their neighbors with an even number of protons.

Step 2 of 2

##### ISBN: 9780134414232

The answer to “?The normal boiling point of $$\mathrm{Br}_{2}(l)$$ is $$58.8^{\circ} \mathrm{C}$$, and its molar enthalpy of vaporization is $$\Delta H_{\text {vap }}=29.6 \mathrm{~kJ} / \mathrm{mol}$$. (a) When $$\mathrm{Br}_{2}(l)$$ boils at its normal boiling point, does its entropy increase or decrease? (b) Calculate the value of $$\Delta S$$ when 1.00 mol of $$\mathrm{Br}_{2}(l)$$ is vaporized at $$58.8^{\circ} \mathrm{C}$$.Text Transcription:Br2(l)58.8^{\circ} C\Delta H_vap = 29.6 kJ/mol\Delta S” is broken down into a number of easy to follow steps, and 62 words. Since the solution to 19.23 from 19 chapter was answered, more than 217 students have viewed the full step-by-step answer. This full solution covers the following key subjects: . This expansive textbook survival guide covers 29 chapters, and 2820 solutions. This textbook survival guide was created for the textbook: Chemistry: The Central Science, edition: 14. Chemistry: The Central Science was written by and is associated to the ISBN: 9780134414232. The full step-by-step solution to problem: 19.23 from chapter: 19 was answered by , our top Chemistry solution expert on 10/03/18, 06:29PM.

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?The normal boiling point of $$\mathrm{Br}_{2}(l)$$ is $$58.8^{\circ} \mathrm{C}$$, and its molar enthalpy of vaporization is \(\Delta H_{\text {vap }}