Physics Help Forum How much mass needed to cool down liquid?

 Thermodynamics and Fluid Mechanics Thermodynamics and Fluid Mechanics Physics Help Forum

 Apr 16th 2019, 02:29 AM #1 Junior Member   Join Date: Apr 2019 Posts: 23 How much mass needed to cool down liquid? https://imgur.com/a/a7yJtFh It's question 5. Could someone push me in the right direction here. Idk what's up. Is there a part along the way where I've got it wrong or is it right from the beginning lol? Thanks for any help
 Apr 16th 2019, 02:36 AM #2 Senior Member   Join Date: Mar 2019 Location: cosmos Posts: 666 I cool your down. right?
 Apr 16th 2019, 02:46 AM #3 Junior Member   Join Date: Apr 2019 Posts: 23 Sorry, I don't understand?
 Apr 16th 2019, 03:00 AM #4 Senior Member   Join Date: Mar 2019 Location: cosmos Posts: 666 Congratulations. Beer... Haha.....
 Apr 16th 2019, 03:03 AM #5 Junior Member   Join Date: Apr 2019 Posts: 23 Not a big fan of beer myself but I do love drinking alone with a bunch of junk food. It's a good time before the misery and paranoia sets in. By the way...anyone got a clue on this problem?
 Apr 16th 2019, 03:09 AM #6 Senior Member   Join Date: Mar 2019 Location: cosmos Posts: 666 You like drink alone? haha... my guy...don't fire at Oz ,they are scholar,,, I think we are ....I drunk....
 Apr 16th 2019, 03:14 AM #7 Senior Member   Join Date: Mar 2019 Location: cosmos Posts: 666 What problem, dummy,?no problem.
 Apr 16th 2019, 03:58 AM #8 Junior Member   Join Date: Apr 2019 Posts: 23 No firing at anyone going on here, I just want some help with this question lol
 Apr 16th 2019, 09:19 AM #9 Senior Member   Join Date: Aug 2010 Posts: 434 Perhaps you should stop ending your posts with "lol"! The question asks which of the following is false: A) When heat is transferred because of a temperature difference, then the heat flows from the hot object to the cool object. Of course this is true! B) Two objects, allowed to come to thermal equilibrium, have the same temperature. Yes, this is true. The actual amount of "heat" in the two bodies might be different. C) Heat transfer can take place simultaneously by conduction, convection, and radiation. Yes, this is true. "Conduction" occurs when two objects are in contact and heat flows directly from one to the other. "Convection" is when a fluid, like air or water, gets heat from one object and carries it to the other. Even if the two objects are in contact, so that "conduction" is happening, a fluid can carry heat from another part of one to the other. "Radiation" is when infra-red radiation carries heat from one to the other. D) Conduction, convection, and radiation can all transfer heat through a vacuum. This is the one that is false. Conduction and radiation can transfer heat through a vacuum but convection requires some kind of fluid, not a vacuum. E)The rate of heat transfer by conduction, convection, and radiation all depend (approximately) on the difference in temperature between the two locations. Yes. this is true. topsquark likes this.
 Apr 16th 2019, 09:49 AM #10 Junior Member   Join Date: Apr 2019 Posts: 23 Sorry, is there a rule I'm breaking when I say lol? Not to be rude, but that's an awfully irrelevant pick. Unless there's something about 'lols' that violate a rule here. Thank you for your reply, however, it seems you've neglected to read my post (except for the god-forsaken lol, of course). I already got the answer to the one which you've gone through, though it's nice to have a back-up on that one. As I stated, I was looking at question 5, which asks, as stated in my title, for the mass needed to cool down the liquid. Thank you anyways. I'll refrain from doing anything too excessively cheerful for you with this reply.

 Tags cool, liquid, mass, needed

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