Question

What is significance of thermodynamics

Answer 1

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♪ The first law of thermodynamics has the following significances:

• It establishes the relation between heat and work. The total energy of an isolated system must remain constant.
• According to this law, a fixed amount of heat is needed to get a fixed amount of work or to get a fixed amount of heat a fixed amount of work is needed.
• It is impossible to get work or energy without expending something.
• Work and heat are equivalent to each other.
• It is nothing but the principle of conservation of energy. In any system, the sum of work done and change in internal energy is always equal to supplied heat.