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A gas has a volume of 5 liters at 25 degrees C (25⁰ C). Find the...

  1. A gas has a volume of 5 liters at 25 degrees C (25⁰ C). Find the final temperature of the gas if the volume doubles to 10 liters. Show both the equation you used to get your answer as well as your work. Also, why or why not your answer makes physical sense based on what you have learned in class.
  2. A weather balloon has a volume of 1800 liters at 103 kPa (kilo Pascals). The balloon is released into the atmosphere. When it reaches its highest point above the ground, the pressure on the balloon 30 kPa. What is the balloon’s new volume at this height? Show both the equation you used to get your answer as well as your work. Also, why or why not your answer makes physical sense based on what you have learned in class.  
  3. On a perfect fall day, you are hovering at low altitude in a hot-air balloon, accelerated neither upward nor downward. The total weight of the balloon, including its load and the hot air in it, is 20,000 N. The density of air is about 1.2 kg/m3. Show your work and explain your reasoning.
  1. Find the volume of the displaced air.
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