4. The force needed to lift a glass of water is about 5N and the distance raised is about 0.75cm. How much work is done in raising the glass?

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answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

since electrons are negative the answer is neagtaive

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.