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During an isothermal expansion, a confined ideal gas does of work against its surrounding. This implies that:

  1. A
    of heat has been added to the gas
  2. B
    of heat has been removed from the gas
  3. C
    of heat has been added to the gas
  4. D
    No heat is transferred because the process is isothermal

Solution & Step-by-step Explanation

For an isothermal process of an ideal gas, .According to the first law of thermodynamics:


A negative value for means heat has been removed from (given out by) the system.

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During an isothermal expansion, a confined ideal gas does of work against its surrounding. This implies that:
A
of heat has been added to the gas
B
of heat has been removed from the gas
C
of heat has been added to the gas
D
No heat is transferred because the process is isothermal

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