Answer
$1)$ All warmth motors work in a cycle .
$2)$ warm motors takes the Energy from source, clandestine some part in work and rejects remaining vitality in the sink .
$3)$ They deal with the second law of thermodynamics
Work Step by Step
$1)$ All warmth motors work in a cycle .
$2)$ warm motors takes the Energy from source, clandestine some part in work and rejects remaining vitality in the sink .
$3)$ They deal with the second law of thermodynamics