Chemistry Equilibrium UHS 2024
PMDC Verified Question 2 of 102
The principle that states if a stress is applied to a system at equilibrium the system nullify the effect of stress as far as possible is:
A
Haber's
B
Le-Chatelier's
C
Boyle's
D
Charle's
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Le-Chatelier's
Concept:

This is the literal textbook definition of the fundamental principle of chemical equilibrium dynamics.

Solution:

  • In 1884, French chemist Henri Le Chatelier postulated that "If a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change to reestablish an equilibrium."


  • The "stress" refers to changes in concentration, pressure, volume, or temperature.


  • This is universally known as Le-Chatelier's Principle.


Why other options are incorrect:

Haber developed a specific industrial process for ammonia. Boyle's and Charles's laws relate strictly to the physical properties of ideal gases (Volume vs. Pressure/Temperature), not chemical equilibrium.

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.

Previous Question All Equilibrium MCQs Next Question

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.

Enter Arena Sprint iOS App Android App