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Author Question: A helium-filled balloon has a volume of 1 m3 . As it rises in the earth's atmosphere, its volume ... (Read 136 times)

jCorn1234

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on: Jul 28, 2018
A helium-filled balloon has a volume of 1 m3 . As it rises in the earth's atmosphere, its volume expands. What will its new volume be (in m3) if its original temperature and pressure are 20C and 1 atm, and its final temperature and pressure are -40C and 0.1 atm?
 a. 4
  b. 6
  c. 8
  d. 10
  e. 1.5

Question 2

A bicycle pump contains air at one atmosphere and 0C. As the tire is pumped up, the volume of air decreases by 50 with each stroke. What is the new pressure of air (in atm) in the chamber after the first stroke, assuming no temperature change?
 a. 2
  b. 1
  c. 0.5
  d. 0.1
  e. 3


peilian

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

A


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