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Mathematics 21 Online
OpenStudy (anonymous):

@Destinymasha

OpenStudy (destinymasha):

hello @tatumrocks

OpenStudy (anonymous):

Use the diagram to answer queston number 1. description: particles have enough energy to brack fee from each other and can move around freely; particles spread out in different directons. 1) solid 2)liquid 3)gas 4)molecule

OpenStudy (destinymasha):

what do you think? @tatumrocks

OpenStudy (anonymous):

#1

OpenStudy (anonymous):

or #4

OpenStudy (destinymasha):

in solids - they are almost stuck together, they have no space molecule - makes no sense

OpenStudy (destinymasha):

liquid - they move about, but not more than gas

OpenStudy (anonymous):

I stil thinkk it's #1

OpenStudy (destinymasha):

put it if you like....just know it makes no sense, whatsoever :}

OpenStudy (anonymous):

So not 1 or 4?

OpenStudy (destinymasha):

i just explained everything to you ^^

OpenStudy (anonymous):

Liquid?

OpenStudy (anonymous):

@des

OpenStudy (anonymous):

@Destinymasha

OpenStudy (anonymous):

Liqud?

OpenStudy (anonymous):

Gas?

OpenStudy (destinymasha):

maybe liquid

OpenStudy (anonymous):

O+I say 1

OpenStudy (destinymasha):

1 - liquids

OpenStudy (anonymous):

yes

OpenStudy (destinymasha):

next!

OpenStudy (anonymous):

YES!

OpenStudy (destinymasha):

lol

OpenStudy (anonymous):

Hold on I'm going to do someting for my Dad.

OpenStudy (destinymasha):

ok

OpenStudy (anonymous):

Equal amounts of thermal energy are applied to a 100 g sample of one substance and a 200 g of a different substance. What statement is always true? a. The temp. of the 1st substance will rise more than the 2nd substance's temp. b. The temp. of the 1st substance will rise less than the 2nd substance's temp. c. The temp. of the sample with the higher specific heat will rise more than the sample with lower specific heat. d. The temp. of the sample with the lower specific heat will rise more than the sample with the higher specific heat.

OpenStudy (anonymous):

@agent0smith and @Preetha

OpenStudy (anonymous):

@Jadeishere and @mangorox and @SeaTurtle113

OpenStudy (jadeishere):

I don't know, sorry D:

OpenStudy (agent0smith):

If you heated a huge pot of water on a stove for 10 minutes, vs heating a tiny pot of water for 10 minutes, which do you think will be hotter after 10 minutes?

OpenStudy (agent0smith):

Actually it's more to do with specific heat... but also mass..

OpenStudy (agent0smith):

I don't see how you can answer that - it depends on both specific heat AND mass. and both are different in this case.

OpenStudy (agent0smith):

http://www.eoearth.org/files/177701_177800/177776/specific_heat_table.jpg i mean 1kg of water can absorb 4186J of heat before it rises 1 degree 1kg of lead can absorb a mere 128J of heat before rising 1 degree. both mass and specific heat have a big impact. The mass here is twice as much, but we know nothing about the specific heats.

OpenStudy (anonymous):

I think it's D

OpenStudy (agent0smith):

^okay, but if you'd read my above replies you'd see that, without knowing anything of the specific heats, it doesn't appear to have a valid answer.

OpenStudy (agent0smith):

If the masses are double, and the specific heat of substance 1 is exactly twice substance 2's, then they'll each rise by the same temp \[\large Q = m c_p \Delta T\]is the formula that can justify this. If mass doubles and specific heat halves, then T is the same for both.

OpenStudy (anonymous):

So....?

OpenStudy (anonymous):

@agent0smith

OpenStudy (agent0smith):

What statement is always true? None of them are always true.

OpenStudy (anonymous):

But which one would you pick?

OpenStudy (agent0smith):

Idk, all are equal. Email whoever and tell them the question has no correct answer.

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