lecture 4 - Thermal and Fluids Engineering I Lecture 4...

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Thermal and Fluids Engineering I Lecture 4 Page 1 Lecture 4 – Specific Heat Specific Heat of Ideal Gases Specific heat is the energy required to raise the temperature of a unit mass of a substance by one degree For gases, we distinguish between constant pressure processes and constant volume processes: Constant pressure: Constant volume: More heat is needed to raise a unit mass by one degree in a constant pressure process than in a constant volume process. In a constant pressure process, the added heat is converted to both internal energy and work to raise the weight. In a constant volume process, all added heat is converted to internal energy.
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