Kinetic Theory of Gases and Radiation — Formula Sheet
Maharashtra Board · Class 12 · Physics
6 formulas from Kinetic Theory of Gases and Radiation (Maharashtra Board Class 12 Physics) on one page, grouped by topic.
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Formulas and Key Relations
Equation of State and Gas Laws
Boyle's Law
V ∝ 1/P at constant T
Charles' Law
V ∝ T at constant P
Temperature Interpretation and Equipartition of Energy
Average KE per molecule = (3/2)kBT for monatomic gas
Key relations
PV = nRT (or PV = NkₐT) derived from kinetic theory gives P = (1/3)(N/V)mv̄².
vᵣₘₛ = √(3RT/M₀) = √(3kₐT/m) shows that molecular speed increases with temperature and decreases with molecular mass.
λ = 1/[√2πd²(N/V)] represents average distance traveled by molecules between collisions.
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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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