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JEE Main2002ChemistryThermodynamics (C)Actual

A heat engine absorbs heat Q₁ at temperature T₁ and heat Q₂ at temperature T₂ . Work done by the engine is J (Q₁+Q₂ ) . This data

Options

  1. Aviolates 1^ st law of thermodynamics
  2. Bviolates 1^ st law of thermodynamics if Q₁ is -v e
  3. Cviolates 1^ st law of thermodynamics if Q₂ is - ve
  4. Ddoes not violate 1^ st law of thermodynamics

Correct answer

A. violates 1^ st law of thermodynamics

Step-by-step solution

Some mechanical energy is always converted (lost) to other forms of energy.

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