A. during the vaporization process, how does the energy of the molecules of the substance change as a result of the heat it absorbs?

b. how does the heat of vaporization of water compare to the heats of vaporization of other, similar substances? how does this difference relate to intermolecular forces?

c. how much heat is needed to melt 3.0 kg of ice at its melting point? the latent heat of fusion for water is 333 kj/kg. show your work.

d. when the temperature is expected to drop below freezing, a citrus farmer sprays water on the trees and fruit. write two or three sentences to explain why the farmer uses this technique to protect the trees and fruit from freezing. hint: remember that liquid water has more potential energy than ice.

Arunner is jogging at a steady 3.6 km/hr. when the runner is 2.9 km from the finish line, a bird begins flying from the runner to the finish line at 14.4 km/hr (4 times as fast as the runner). when the bird reaches the finish line, it turns around and flies back to the runner. even though the bird is a dodo, we will assume that it occupies only one point in space, i.e., a zero-length bird. how far does the bird travel? (b) after this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. the bird repeats the back and forth trips until the runner reaches the finish line. how far does the bird travel from the beginning? (i.e. include the distance traveled to the first encounter)

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c

Marvin records scientific data about lake superior. for which property has marvin forgotten to use an si unit of measurement? shore length high temperature low temperature annual precipitation