Which statement best describes the relationship between temperature and evaporation rate in ocean surface areas?

Which statement best describes the relationship between temperature and evaporation rate in ocean surface areas?

• A. Higher temperature increases evaporation rate
• B. Higher temperature decreases evaporation rate
• C. Temperature has no effect on evaporation rate
• D. Evaporation rate depends only on wind

Answer: (A)

Higher temperature gives water molecules more energy to escape into the air, so the evaporation rate increases. When water warms, its molecules move faster and more of them reach the energy needed to break free from the surface. The air’s ability to take on that vapor also matters: warmer water raises the saturated vapor pressure, increasing the potential for evaporation as long as the air isn’t already saturated. Wind helps by carrying away vapor and reducing the local air humidity, but the fundamental driver is temperature. That’s why hotter ocean surface leads to faster evaporation. The idea that temperature has no effect, or that it would decrease evaporation, or that evaporation depends only on wind, doesn’t fit the science of how vapor pressure and energy work.

Higher temperature gives water molecules more energy to escape into the air, so the evaporation rate increases. When water warms, its molecules move faster and more of them reach the energy needed to break free from the surface. The air’s ability to take on that vapor also matters: warmer water raises the saturated vapor pressure, increasing the potential for evaporation as long as the air isn’t already saturated. Wind helps by carrying away vapor and reducing the local air humidity, but the fundamental driver is temperature. That’s why hotter ocean surface leads to faster evaporation. The idea that temperature has no effect, or that it would decrease evaporation, or that evaporation depends only on wind, doesn’t fit the science of how vapor pressure and energy work.