Heat transfer- Heat transfer is the science which is used to predict heat transfer which may take place between the body as a temperature difference.
DIFFERENCE BETWEEN THERMODYNAMICS AND HEAT TRANSFER
- Thermodynamics is concerned with equilibrium state of matter and precludes the temperature gradient.
- Thermodynamics help in determining the quantity of work and heat interaction when system changes from one equilibrium state to another.
- Thermodynamics does not provide information about temperature distribution in body.
- Heat transfer is concerned with non equilibrium process and temperature gradient is must for heat transfer.
- Heat transfer helps us to determine the time rate at which interaction occurs.
- Heat transfer help us to determine temperature distribution in the body and rate at which energy is transferred
NOTE- 1) Whenever a temperature difference exists between two medium or in a medium, heat transfer occurs.
2) If there is concentration difference between two medium or in a medium, mass transfer occurs.
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