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Real gases and vapors deviate from ideal behavior on account of intermolecular i

ID: 513254 • Letter: R

Question

Real gases and vapors deviate from ideal behavior on account of intermolecular interactions. One equation of state for real gas is the van der Waals equation, which is expressed in terms of two parameters, a and b Map Chemical Principles 7th Edition MHE/Freeman presented by Sapling Leaming Real gases and vapors deviate from ideal behavior on account of intermolecular interactions. One equation of state for a real gas is the van der Waals equation, which is expressed in terms of two parameters, a and b. For each of the following pairs of gases, determine which substance has the larger van der Waals a parameter O CH4. O CO2 O H2CO O H2 For each of the following pairs of gases, determine which substance has the larger van der Waals b parameter. O CH4 O F2 CH3CHzCH3 O Ne o Previous ave up s veuw s tien check Answer 0 Next Exit

Explanation / Answer

Vander Waals parameter 'a' corresponds to attractions among the gas amolecules.

Between, CO2 and H2, CO2 has greater a value because it has more intermolecular atractions than that of H2.

Between, CH4 and H2CO, H2CO has greater 'a' value than that of CH4 because it has more attractions among its molecules than CH4.

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Vander Waals parameter 'b' corresponds to volume of gas molecules.

F2 has more 'b' value

CH3CH2CH3 has more 'b' value as they occupy more volume than Ne and CH4.