Which one is valid among the following statements about an ideal gas? (A) The va

Question

Which one is valid among the following statements about an ideal gas?
(A) The vapor in a liquid-vapor mixture of water is always considered as an ideal gas.
(B) An ideal gas is an imaginary substance that has high intermolecular forces and each gas
molecule occupies a relative large volume.
(C) An ideal gas is an imaginary substance that is close to the real gas with very high density.
(D) The Pv=RT equation closely approximates the P-v-T behavior of the real gases at high
pressure and low temperature.
(E) The Pv=RT equation closely approximates the P-v-T behavior of the low-density real gases at
low pressure and high temperature.

Explanation / Answer

(E) The Pv=RT equation closely approximates the P-v-T behavior of the low-density real gases at low pressure and high temperature. ANSWER EXPLANATION an ideal gas is low density gas approaches absolute ideal behaviour with low pressure and high temp..

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