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Author Question: A weather balloon contains 12.0 m3 of hydrogen gas when it is released from a location at which the ... (Read 51 times)

Anajune7

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on: Jul 29, 2018
A weather balloon contains 12.0 m3 of hydrogen gas when it is released from a location at which the temperature is 22C and the pressure is 101 kPa.
 
  It rises to a location where the temperature is -30C and the pressure is 20 kPa. If the balloon is free to expand so that the pressure of the gas inside is equal to the ambient pressure, what is the new volume of the balloon?
  A)
 
  14.0 m3
 
  B)
 
  2.38 m3
 
  C)
 
  49.9 m3
 
  D)
 
  82.6 m3
 
  E)
 
  4.16 m3

Question 2

The decay rate of an isotope is initially R0, but after one half-life has gone by, the rate is R0/2. At the end of the NEXT half-life, what will the decay rate be?
 
  A) R0/4 B) 0 C) R0/16 D) R0/e E) R0/e2


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carojassy25

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Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

A


Anajune7

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

alexanderhamilton

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Reply 3 on: Yesterday
Excellent

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