The gas law (PV = RT) is true for an ______________ change?
Correct answer: C. Both A. & B
- A. Isothermal
- B. Adiabatic
- C. Both A. & B
- D. Neither A. nor B
Explanation
PV = RT is the ideal-gas equation of state, so it applies at every equilibrium state of an ideal gas, whether the process is isothermal or adiabatic. Hence it is valid for both listed changes, although the statement should explicitly say ideal gas.
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