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T_ P dependence of heat capacity

Heat capacity

Heat capacity

♦  Temperature dependence of heat capacity

     • (C)(p) usually give as (C)(p)=(a)+(bT)+(cT)−(2)+(dT)(2)
     • When phase changes → Heat capacity changes abruptly

♦  Pressure dependence of heat capacity

     • (C)(p) of ideal gas
       For ideal gas, (C)(p) is independence of pressure. Each molecule behaves        independently.

     • (C)(p) of solid
       In most cases, (C)(p) is a function of temperature and not a function of        pressure, but at high pressire, (C)(p) is strongly dependent on pressure.

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Thermodynamics in Energy Engineering

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