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CHEMISTRY!!!!

Thread starter libra94
Start date May 4, 2011

May 4, 2011

#1

libra94

can someone plz help me out in question 9
here's the link: http://www.xtremepapers.me/CIE/Internat ... _qp_11.pdf
thanks.

May 4, 2011

#2

msk

see first find total energy absorbed by water =200x4.2x(66-18)
now form an equation
(45/100)x E =40320
E=89600 now for per gram divide by 1.6
56000 j

May 4, 2011

#3

libra94

thnkss
i was taking the temperature in kelvins

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