Question

which factor is important in making it possible to cool yourself by sweating? think carefully! (a) molecules collide with varied angles and speeds. (b) hydrogen bonds are relatively weak. (c) water has more energy at the body surface. both (a) and (b). (a), (b), and (c). submit request answer part h though you add heat, the temperature of boiling water remains constant because it takes energy to break covalent bonds. it takes energy to circulate water. water has a constant boiling temperature. it takes energy to break hydrogen bonds. none of the above. the temperature rises during boiling.

Explanation:

For the sweating - related question, molecules colliding with varied angles and speeds contribute to the randomness of molecular motion and heat transfer during evaporation. Weak hydrogen bonds in water allow water molecules to break away from the liquid phase and evaporate, which is crucial for cooling through sweating. For the boiling - water question, when water boils, the added heat energy is used to break the hydrogen bonds between water molecules rather than increasing the temperature until all the water has changed from the liquid to the gas phase.

Answer:

Part (a): D. Both (a) and (b)
Part (b): it takes energy to break hydrogen bonds.