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Chemistry 22 Online
OpenStudy (anonymous):

Which of the following substance would show the greatest temperature change upon absorbing 100 J of heat? A) 10.0 g H2O, CH2O = 4.18 J/g°C B) 10.0 g Au, CAu = 0.128 J/g°C C) 10.0 g ethanol, Cethanol = 2.42 J/g°C D) 10.0 g Fe, CFe = 0.449 J/g°C E) 10.0 g Ag, CAg = 0.235 J/g°C How exactly do I figure the answer for this out?

OpenStudy (chmvijay):

what do you think ???

OpenStudy (chmvijay):

Q= MSDelta T Q/MS= Delta T where Q is energy in joules M is mass of material S is specific heat capacity it seems the Delta T is inversely proprtional to Specfic heat capacity

OpenStudy (chmvijay):

since Mass of all material is constant !!:)right

OpenStudy (chmvijay):

now can u answer LOL:)

OpenStudy (chmvijay):

hello say somethin LOL @lalokio

OpenStudy (anonymous):

Sorry left my computer on last night ... So we have 100 J/ 10 g ethanol * .128 J / g C = 78.12J / g C which is the greatest temperature change i get from all four :D

OpenStudy (chmvijay):

LOL u calculate for all and tell me !!!u calculate delta T for all :)

OpenStudy (anonymous):

Yeah ! Is there a shorter way to find out the answer?

OpenStudy (anonymous):

The answer is B) 10.0 g Au, CAu = 0.128 J/g°C

OpenStudy (chmvijay):

yaaa !!smaller the S value larger the temperature difference ur right BingOOOOO!!!1

OpenStudy (anonymous):

Awesome! Thank you so much :D

OpenStudy (chmvijay):

ur welcome :)

OpenStudy (chmvijay):

and dont go to bed without swith offing the computer LOL:) save electrons mean current:) enjoy Chemistry

OpenStudy (anonymous):

Okay, I'll try my best to turn it off when I go to bed.

OpenStudy (chmvijay):

:)

OpenStudy (chmvijay):

i liked ur profile PIC its nice :)

OpenStudy (anonymous):

Thanks!

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