First law of Thermodynamics The first law of Thermodynamics usually applies to situations where?
A : Thermal Energy is converted to Mechanical Energy
B : Chemical Energy is converted to electrical energy
C : Light energy is converted to sound Energy
D : Nuclear energy is converted to sound energy

Thermal energy is taken from heat sink in higher temperature. A thermal power machine does mechanical energy using part of the heat.

Part of heat taken are given in cold reservoir in lower temperature

Explanation:

the answer to your question is c

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying