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An ideal gas undergoes an isothermal expansion from one state to another.  In this process determine the...

  1. An ideal gas undergoes an isothermal expansion from one state to another.  In this process determine the following (using the sign conventions on page 413):
    • Q = 0, Q > 0 or Q < 0
    • W = 0, W > 0 or W < 0
    • ΔU = 0, ΔU > 0 or ΔU < 0
  1. An ideal gas undergoes an isothermal process.  Which of the following are true (may be more than one):  a) No heat is added or removed from the gas, b) the internal energy of the gas does not change and/or c) the average kinetic energy of the molecules does not change.
  1. An ideal gas undergoes an adiabatic expansion in which no heat flows into or out of the gas.  As a result determine which of the following properties of the gas increases (may be more than one): a) temperature, b) pressure and/or c) volume.  
  1. Can you cool your kitchen by leaving your refrigerator door open?  Why or why not?
  1. If 1500 J of heat is added to a system and the system does 1100 J of work, then what was the change in the internal energy of the system?   Assume the system is closed (i.e. a gas inside of a cylinder fitted with a movable piston).
  2. ​​​​​​​

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genius_generous answered 1 week ago
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