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Get Full Access to Chemistry: The Central Science - 14 Edition - Chapter 19 - Problem 19.20
Get Full Access to Chemistry: The Central Science - 14 Edition - Chapter 19 - Problem 19.20

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ISBN: 9780134414232 1274

## Solution for problem 19.20 Chapter 19

Chemistry: The Central Science | 14th Edition

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Problem 19.20

As shown here, one type of computer keyboard cleaner contains liquefied 1,1-difluoroethane $$\left(\mathrm{C}_{2} \mathrm{H}_{4} \mathrm{~F}_{2}\right)$$, which is a gas at atmospheric pressure. When the nozzle is squeezed, the 1,1-difluoroethane vaporizes out of the nozzle at high pressure, blowing dust out of objects.

(a) Based on your experience, is the vaporization a spontaneous process at room temperature?

(b) Defining the 1,1-difluoroethane as the system, do you expect $$q_{s y s}$$ for the process to be positive or negative?

(c) Predict whether $$\Delta S$$ is positive or negative for this process.

(d) Given your answers to (a), (b), and (c), do you think the operation of this product depends more on enthalpy or entropy? [Sections 19.1 and 19.2]

Text Transcription:

(C_2H_4F_2)

q_{s y s}

\Delta S

Step-by-Step Solution:
Step 1 of 3

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Step 3 of 3

##### ISBN: 9780134414232

This textbook survival guide was created for the textbook: Chemistry: The Central Science, edition: 14. Since the solution to 19.20 from 19 chapter was answered, more than 208 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. The full step-by-step solution to problem: 19.20 from chapter: 19 was answered by , our top Chemistry solution expert on 10/03/18, 06:29PM. The answer to “?As shown here, one type of computer keyboard cleaner contains liquefied 1,1-difluoroethane $$\left(\mathrm{C}_{2} \mathrm{H}_{4} \mathrm{~F}_{2}\right)$$, which is a gas at atmospheric pressure. When the nozzle is squeezed, the 1,1-difluoroethane vaporizes out of the nozzle at high pressure, blowing dust out of objects. (a) Based on your experience, is the vaporization a spontaneous process at room temperature? (b) Defining the 1,1-difluoroethane as the system, do you expect $$q_{s y s}$$ for the process to be positive or negative? (c) Predict whether $$\Delta S$$ is positive or negative for this process. (d) Given your answers to (a), (b), and (c), do you think the operation of this product depends more on enthalpy or entropy? [Sections 19.1 and 19.2] Text Transcription:(C_2H_4F_2)q_{s y s}\Delta S” is broken down into a number of easy to follow steps, and 121 words. Chemistry: The Central Science was written by and is associated to the ISBN: 9780134414232.

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