Consider the Gibbs-Helmholtz equation, G = H - TS. For each dissolving process, substitute the signs of G and H into the equation and predict the sign for the entropy (S). Does the sign for entropy change seem to make sense? Explain.

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!

In which of the following phases of matter do molecules have the highest amount of energy? a. liquid b. gel c. solid d. gas