Multiple choice general knowledge science & technology

"heat cannot be completely converted into work" This is?

  1. Zeroth law of thermodynamics

  2. First law of thermo Dynamics

  3. Second law of thermoDynamics

  4. Third law of thermodynamics

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Second Law of thermodynamics states that heat cannot be completely converted into work in a cyclic process without any other effect. There's always some waste heat that must be rejected to a colder reservoir, establishing limits on thermal efficiency.