Vedatom Physics Thermodynamics
Revise ·
Heat & work — sign convention
First law: ΔQ = ΔU + ΔW — heat supplied = rise in internal energy + work done by the gas.
Heat Q: + when supplied TO the system, − when released.
Work W: + when done BY the gas (expansion), − on compression.
ΔU depends only on the end states (a state function); Q and W depend on the path. Over a full cycle ΔU = 0.
Full walkthrough →

Thermodynamics & Heat

Heat is molecules in motion — so watch them move. Squeeze the gas, add heat, run the cycle, and read P, V, T straight off the bench as the physics happens.

THERMAL CHAMBER · IDEAL GAS
T    = 300 K
P    = 1.00 atm
v_rms = 400 m/s
N    = 30
½m<v²> = (3/2)kT
faster = hotter = redder
6 modules/ diagram · micro · 3D/ PV · Carnot · Maxwell/ exam-ready

Two ways in

the same physics · your choice of door
Door one
The Lab

Six hands-on benches — squeeze the gas box, drag the PV indicator diagram, run the Carnot cycle, watch the Maxwell distribution reshape. Learn by turning the knobs.

6 modules draggable sims exam banks
Enter the Lab →
Door two
The Full Book

Three volumes written to read cover to cover — every derivation, worked example and problem bank at JEE-Advanced depth, with the Lab’s benches embedded inline where each idea appears.

3 books 95 worked examples chapter tests
Open the Full Book →
Recall Deck — cards due
Spaced revision, cut from these benches and chapters.
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Glossary & formulas
Every definition and formula, printable.
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Sign convention
Heat & work signs, state vs path functions.