MCQ
Which gas law should be used to solve a gas problem in which only the pressure and temperature of a gas change?
  • A
    Boyle's Law
  • B
    Ideal Gas Law
  • C
    Combined Gas Law
  • Combined Gas Law

Answer

Correct option: D.
Combined Gas Law
Gay $-$ Lussac's law states that for a given mass and constant volume of an ideal gas, the pressure exerted on the sides of container is directly propotional to absolute temperature.
So, for pressure $-$ temperature graph, we use Gay $-$ Lussac's law.

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