In this example question, it asks to identify the type of force involved in the situations below as either intermolecular or intramolecular. Remember, intermolecular forces are the non-bonding forces that exist. They're really just the attractive forces that exist between molecules, not the actual bonds. Intramolecular forces deal with the bonding forces. So we're talking about atoms connecting to each other.

First, we have the condensation of water vapor. This just means that water is going from its gaseous phase to its liquid phase. Here, we have closer interactions between different water molecules with each other. We have closer attractive forces for one another, but we're not really making new bonds here. Thus, this would be an intermolecular force.

Next, we have the formation of ammonia through the combination of nitrogen and hydrogen. In this combination, we're forming something new by taking N₂ and H₂ to make NH₃. So, we're making new bonds. This would be an intramolecular force.

Next, sugar dissolves in water. Here, sugar is polar, water is polar, but we're not really forming a brand-new bond between sugar and water. They are dissolving into each other to make a solution here. So this would be an intermolecular force.

Finally, water flowing up the veins of a plant due to capillary action. Capillary action is actually a property that's the result of an intermolecular force. This would be intermolecular. The hydrogen bonding that exists in water allows it to perform this type of phenomenon where it's actually going to move up the roots and the stems of a plant so it can reach the top part of the plant and feed its leaves and the top portion of it. So just remember, capillary action is one of those special properties that's a result of intermolecular forces.