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August 18, 2014, 10:08 |
difference between ideal gas and perfect gas
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#1 |
Member
Shenren Xu
Join Date: Jan 2011
Location: London, U.K.
Posts: 67
Rep Power: 15 |
(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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August 18, 2014, 13:19 |
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#2 |
Senior Member
Join Date: Jul 2009
Posts: 354
Rep Power: 18 |
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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March 20, 2016, 08:09 |
Ideal vs perfect gas
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#3 |
New Member
NITW
Join Date: Oct 2015
Posts: 2
Rep Power: 0 |
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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