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Calorimetry A thirsty nurse cools a 2.40 L 
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#1
Jul2212, 09:33 PM

P: 12

1. The problem statement, all variables and given/known data
A thirsty nurse cools a 2.40 L bottle of a soft drink (mostly water) by pouring it into a large aluminum mug of mass 0.250 kg and adding 0.123 kg of ice initially at 15.5 degree celsius . If the soft drink and mug are initially at 20.2 degree celsius, what is the final temperature of the system, assuming no heat losses? 2. Relevant equations Q1+Q2+Q3+Q4+Q5=0 Q=Mc(change in T) Q=ML C ice= 2010 (given) C water = 4190 (given) C Al= 904 L = 3.34*10^5 (given) M drink = Density *Volume = (1000)(.0024)=2.4 3. The attempt at a solution Q1=M ice (C ice) (Temp) = .123(2010)(015.5) = 3832 Q2=M ice (L) = .123 (3.34*10^5) = 41082 Q3=M ice (C water) (Temp) = .123 (4190)(T0) = 515.4 (T) Q4=M drink (C water) (Temp) = 2.4 (4190) (T20.2) = 10056 (T20.2) Q5=M Al (C Al) (Temp) = .25(904)(T20.2) = 226 (T20.2) (3832)+(41082)+515.4 (T) + 10056 (T20.2) + 226 (T20.2) = 0 I keep getting the wrong answer. I think I am missing a Q or misinterpreting one of them 


#2
Jul2212, 10:22 PM

P: 12

never mind I was right 15.1 is the final temp



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