Question

What is the principal of conversion solar energy into heat energy?

Answer 1

HEY MATE

the basic principal of solar thermal utilization is the conversion of short-wave solar radiationinto heat

Answer 2

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Heat is a form of energy.

In Thermodynamic, The change in internal energy of a closed system is equal to the amount of heat applied minus the amount of work done by the system.

And is represented by : ∆ U = Q - W