NO2 and CO2 have a similar molecular weight. Which gas would you predict to deviate from an ideal gas? Justify your selection.

NO2

Explanation:

Gases are known to deviate from ideal gas behavior as a result of intermolecular interaction between gas particles. The greater the magnitude of such intermolecular interaction, the greater the degree of deviation of the gas from the ideal gas law.

Now given that CO2 has dipoles that cancel out, the molecule is not really polar because it has no dipole moment. This is unlike NO2 that has a dipole moment and greater intermolecular interaction.

For the reason stated above, NO2 deviates more from ideal gas behaviour compared to CO2.

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.