AP BIOLOGY

BIOCHEMISTRY

PROPERTIES OF WATER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following properties helps explain why a city near the Pacific Ocean experiences less dramatic changes in temperature during the day compared to a city further inland.
A
Water has a high surface tension
B
Water has a low specific heat
C
Water forms covalent bonds
D
Water has a high specific heat
Explanation: 

Detailed explanation-1: -Cities near the ocean have less change and less extreme temperature than inland cities, it happens because of high specific heat of water, which means water requires a high amount of heat to rise its temperature a little and to get a little fall in its temperature we have to take out a large amount of heat.

Detailed explanation-2: -On the coast, the climate is influenced by warm moist air from the ocean. A coastal climate is usually mild. Summers aren’t too hot, and winters aren’t too cold. Precipitation can be high due to the moisture in the air.

Detailed explanation-3: -Water heats and cools more slowly than landmasses. Therefore, the coastal regions will stay cooler in summer and warmer in winter, thus creating a more moderate climate with a narrower temperature range.

Detailed explanation-4: -The high heat capacity of water also explains why the temperatures of land near a body of water are more moderate. The high heat capacity of water keeps its temperature within a relatively narrow range, causing nearby coastal areas to also have a narrow daily and seasonal temperature range.

Detailed explanation-5: -Because water has a much higher heat capacity, or specific heat, than do sands, soils or other materials, for a given amount of solar irradiation (insolation), water temperature will increase less than land temperature.

There is 1 question to complete.