The present post (Part-2) contains the important basic concepts in Thermal Engineering in Mechanical Engineering. Note down each concepts which might help in GATE 2013 Mechanical.
- N.T.P means Normal Temperature Pressure
- Change in the enthalpy is the heat supplied during constant pressure
- Change in the internal energy is the heat supplied during constant volume
- For isothermal process, process index is unity
- The basis for measuring thermodynamic property of temperature is given by zeroth law of thermodynamics
- First law of thermodynamic gives concepts of internal energy
- Second law of thermodynamic gives concepts of entropy
- Third law of thermodynamic deals with concept of zero entropy at absolute zero temperature of 0 Kelvin.
- Throttling is the process during which cooling is produced
- 1 calorie = 4.186 Joule
- Integration of pdv is non flow work
- On volume basis air contains 21 parts of oxygen
- Molecular weight of gas x characteristics gas constant = value of universal gas constant
- For a perfect gas, internal energy and enthalpy are functions of temperature only
Thnx very informative.
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