Posted by Robert on Wednesday, May 9, 2012 at 3:06pm.
3) You pour 240 mL of Coke into a glass, where the T of the beverage is at 10.5 *C. You then add one ice cube of 45g.
Determine the final temperature and the amount of ice remaining, if any.
So I know that there won't be any more ice left because they will reach thermal equilibrium, and the temperature will be over 0*C.
q for ice will be
= (4.184 J/gK)(45g)(Tf-Ti)
But I have no idea how to go about deltaT and what to do next.
Chemistry - DrBob222, Wednesday, May 9, 2012 at 3:31pm
You need to rething this. You will have ice left over.
45g x 334 J/g = 15030 J available.
To cool the water to 0 C we need
240 x 4.184 x (10.5) = 10,540.7 SO WE have more cooling than we need. Some ice will be left over after cooling to zero C. I figured we need melt only 31.5 g but you need to confirm that. I estimatredf here and there and I'm not positive about the 334 value I used above.
Chemistry - Andrew, Wednesday, May 9, 2012 at 3:32pm
solve q initial for the 240g of coke/water.
solve q initial for the ice.
subract q ice from q coke, then solve for deltaT
q(coke) - q(ice) = (4.18 J/gK)(285g)(deltaT)
Chemistry - DrBob222, Wednesday, May 9, 2012 at 4:35pm
rethink, not rething. ;-)
Chemistry - Robert, Wednesday, May 9, 2012 at 10:23pm
Answer This Question
More Related Questions
- science - an ice cube, a glass of cold water, and a swimming pool are each ...
- chemistry - Suppose you add a small ice cube to room temperature water in a ...
- Physics - Suppose 100 g of water at 20°C is poured over a 70-g cube of ice with ...
- physics - A 40-g block of ice is cooled to −71°C and is then added to 590...
- physics - A 40-g block of ice is cooled to −71°C and is then added to 590 ...
- Physics - a): Two 50 g ice cubes are dropped into 200 g of water in a thermally...
- Physics - The heat of fusion of water is 80 cal/g. When 25 g of ice at 0ºC is ...
- physics - a) Two 36 g ice cubes are dropped into 300 g of water in a thermally ...
- Physics - Inside an insulated container, a 250-g ice cube at 0°C is added to ...
- Physics - 25) A 75-g ice cube at 0 C is placed in 825g of water at 25 C. a) What...