2. Cell Chemistry & Cell Components

Which action would involve the greatest transfer of heat?

Imagine that organisms consisted of 70–95% alcohol instead of 70–95% water. Alcohol's specific heat is about half that of water. How would living things be different?

The amount of heat required to change the temperature of 1 g of any substance by 1°C is defined as __________.

The amount of heat required to convert 1 g of any substance from the liquid to the gaseous state is defined as __________.

The reason that coastal climates are more moderate than inland climates primarily water's high __________.

Sweating has a cooling effect because of water's high __________.

Water has __________ than other liquids such as ethanol, reflecting its capacity to absorb large amounts of heat.

If water were not a polar molecule, how would the effects of climatic warming differ from those currently observed or predicted to occur in the future?

Water has a high heat-absorbing capacity because                   . a. the sun's rays penetrate to the bottom of bodies of water, mainly heating the bottom surface; b. the strong covalent bonds that hold individual water molecules together require large inputs of heat to break; c. it has the ability to dissolve many heat-resistant solutes; d. initial energy inputs are first used to break hydrogen bonds between water molecules and only after these are broken, to raise the temperature; e. all of the above are true

A slice of pizza has 500 kcal. If we could burn the pizza and use all the heat to warm a 50-L container of cold water, what would be the approximate increase in the temperature of the water? (Note: A liter of cold water weighs about 1 kg.) a. 50°C b. 5°C c. 100°C d. 10°C

From what you have learned about water, why do coastal regions tend to have milder climates with cooler summers and warmer winters than do inland areas at the same latitude?