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5.3.132 - Molecular kinetic theory equation

Syllabus
2021
Objective
5.3.132
Level
A2

- Molecular kinetic theory equation

Derive and use ½m⟨c²⟩ = 3kT/2 for molecular kinetic theory.

Use - molecular kinetic theory equation to connect the rule to the data and decision in the question.

This matters because - molecular kinetic theory equation determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - molecular kinetic theory equation to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: use the formula and units given in the question, show the substitution and interpret the result; the calculation alone is not the conclusion.

ConceptA-Level Edexcel Physics A2