Question

Define 1) Isothermal Process 2) Enthalpy of sublimation. Write one statement of 1st law of thermodynamics and it's mathematical expression?
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Answer 1

Answer:

The isothermal process is a process that takes place at the constant temperature (T = Constant, dT = 0). In the T-S plane, an isothermal process is represented by a straight line parallel to the S-axis