Franklin

State whether ΔS is positive, negative, or zero for each of the following processes:

(a) 46 g of liquid water goes from 60°C to 50°C at 1 atm pressure.

(b) 7 g of N2(g) goes from 50°C and 2.0 atm pressure to 50°C and 1.0 atm pressure.

Please give an explanation and the general relationship. Thank you.

The solubility of PbCl2 in Pb(NO3)2(aq) is _________ its solubility in pure water.

(a) less than (b) the same as (c) greater than

Please explain why it is a,b, or c, and please explain how one can figure out the answer for a general compound, not just the one in this example [PbCl2].

Does every number have a unique representation in another base? Yes or No answers won't help. I need an explanation as to why or a link to a proof. Thanks!

When I am using Firefox and I click on the screen, the select tool is on the screen --By this I mean the same thing that hovers at the end of your sentence when you're typing. This wasn't here 2 weeks ago. When I used it 2 weeks ago, I clicked on the screen and used the up and down buttons to move the screen; now when I do that, the select tool goes through the text. How do I turn this off?

I saved a file to my F drive [a USB drive], but it broke. I saved files on it less than 5 days ago. Is there anyway I can still access them on my computer? They were not saved to my computer, but was a temporary file created?