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GyanMul Prep · NEB +2 · Science · Grade 12

Physics (Science, Grade 12)

Everything on these tabs is Physics (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

GyanMul Prep · NEB +2 · Science · Grade 12

Physics (Science, Grade 12)

Everything on these tabs is Physics (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

Chapter 5 of 25 · Physics (Science, Grade 12)

Second Law of Thermodynamics

5 topics
Board exam — Heat and Thermodynamics, 7 marks across 2 chapters
24 solved questions

Why energy conservation alone is not enough: the direction heat actually flows, the engine that cannot be beaten, and the refrigerator that is the same machine run backwards.

Practise this chapter Read solved questions

Topics

What the syllabus defines for this chapter

1Statements of the second law — Kelvin–Planck and Clausius
2Heat engine and its efficiency
3Carnot cycle and the Carnot engine
4Refrigerator and coefficient of performance
5Entropy as a measure of disorder