Chemistry Gases UHS 2024
PMDC Verified Question 2 of 65
The correct ideal gas equation is:
A
qV=nRT
B
PV=nRT
C
gV=nRT
D
yV=nRT
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: PV=nRT
Concept:

The ideal gas equation represents the mathematical synthesis of Boyle's, Charles's, and Avogadro's laws into a single unified equation of state.

Solution:

  • The universal variables defining the state of a gas are Pressure (P), Volume (V), Number of Moles (n), and absolute Temperature (T).


  • The constant of proportionality that links them is the Universal Gas Constant (R).


  • Combining them yields the classic equation: PV = nRT.


Why other options are incorrect:

  • Options A, C, & D: The letters q, g, and y do not represent standard macroscopic thermodynamic state variables in this context. The variable representing the force per unit area on the container must be 'P' (Pressure).

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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