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Author Question: A cylinder of compressed gas contains 1500 psig at 70 F; the cylinder is heated to 120 F. Which of ... (Read 102 times)

ericka1

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on: Jul 16, 2018
A cylinder of compressed gas contains 1500 psig at 70 F; the cylinder is heated to 120 F. Which of the following effects will occur as a result of the temperature change?
 
  1. There will be increased kinetic activity in the contents of the cylinder
  2. The volume of gas in the cylinder will increase
  3. The pressure indicated on the pressure gauge will increase.
  a. 1 only c. 1 and 3
  b. 1 and 2 d. 2 and 3

Question 2

Which two of the following are ways to enhance the process of evaporation? 1. Decrease the temperature of the liquid 2. Increase the temperature of the liquid 3. Decrease atmospheric pressure 4. Increase atmospheric pressure
 
  a. 1 and 3 c. 2 and 3
  b. 1 and 4 d. 2 and 4


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snackralk

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
The increased temperature will increase the kinetic activity of the molecules which make up the gas. Charles law states that pressure and temperature are directly proportional. An increase in temperature will increase the pressure.

Answer to Question 2

ANS: B
Either decreasing the temperature or increasing the atmospheric pressure will decrease the evapo-ration rate.


ericka1

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Reply #2 on: Jul 16, 2018
Correct answers!


snackralk

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Reply #3 on: Jul 16, 2018
Great! Please up vote :D


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