Everything present around the system is known as its surroundings.ĬONTINUE READING BELOW Comparison Chart First Law of Thermodynamics Any item or group of item in which we are dealing with that may be small like a cell or large like an ecosystem is known as a system. While discussing these laws, two terms are very important, i.e., system and surroundings. The first law of thermodynamics discussed that energy could neither be generated nor be destroyed, but it can only change its form whereas the second law of thermodynamics states that entropy of a system never decreases but always increases. But the most important is the first and second laws of thermodynamics. There are four different laws of thermodynamics, i.e., zeroth law, first law, second law, and the third law.
So, it is the study of energy that exists in different forms like heat, light, electrical and chemical energy. The word ‘thermodynamics‘ is the derivative of a Greek word, where “Thermo” stands for heat and “dynamics” means power. The main difference between first law of thermodynamics and second law of thermodynamics is that the first law of thermodynamics discussed that energy could neither be created nor be destroyed, but it can change its form whereas according to the second law of thermodynamics entropy of a system always increases.
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