Define 1st law of thermodynamics
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Posted by Md Fardeen 6 years, 2 months ago
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Yogita Ingle 6 years, 2 months ago
First Law of Thermodynamics
- The First law of thermodynamics is same as law of conservation of energy.
- According to law of energy conservation: - Energy can neither be created nor be destroyed, only transformed to other forms.
- According to first law of thermodynamics:- The change in the internal energy of a closed system is equal to the amount of heat supplied to the system, minus the amount of work done by the system on its surroundings.
- Examples:- Consider a ball falling from the roof of the building when at top of the building the ball has only potential energy and when it starts falling potential energy decreases and kinetic energy starts increasing. At the ground it has only kinetic energy.
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5O75O8 Kulwant Singh Kingra 6 years, 2 months ago
2Thank You