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difference between ideal gas and perfect gas

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Old   August 18, 2014, 10:08
Default difference between ideal gas and perfect gas
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Shenren Xu
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(1) What't the difference, if any?

(2) To simulate low speed air flow at room temperature and 1 atm,
which one suffices?
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Old   August 18, 2014, 13:19
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Simplest answer - in an ideal gas the specific heats are constant. In a perfect gas the specific heats are functions of temperature. Both obey the same equation of state. For your case an ideal approximation is probably sufficient.
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Old   March 20, 2016, 08:09
Default Ideal vs perfect gas
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All perfect gas are ideal gas but reverse is not true. Specific heat for ideal gas is only function of temperature but in perfect gas(inter atomic force is neglected),it has two types calorically perfect gas and thermally perfect gas......
Calorically perfect gas,here specific heat is constant.but in thermally perfect gas,here it is function of temperature only.
Sometimes perfect and ideal gases are interchangeable.
Hope it may helpful.......
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