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April 25, 2014

Homework Help: Physics

Posted by Kong on Thursday, January 26, 2012 at 9:58pm.

Which of the following desceriptions about ideal gas is/are correct?

1)An ideal gas obeys Boyle's law only under high temp and low pressure

2)the molecules of an ideal gas have no size

3)the internal energy of an ideal gas consists of kinetic energy only

A.1)only B.3)only
C.1)&2) D.2)&3)

THE ANS IS D but not 1,2,3 are correct,why?

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