- #1
Gr33nMachine
- 12
- 0
An insulated Thermos contains 122 g of water at 91°C. You put in a 13.7 g ice cube at 0°C to form a system of ice + original water.
Use mc(ΔT) |water + mc(ΔT) |ice + Lm |ice = 0
Final T = [(m*c*T) |water + (m*c*T) |ice - (L*m) |ice] / [m*c |water + m*c |ice]
Final T = [(.122*4.18*364) + (.0137*2.108*273) - (334*.0137)] / [.122*4.18 + .0137*2.108]
[STRIKE]Final T = 77.63K[/STRIKE]
IS WRONG
What am I doing wrong??
Use mc(ΔT) |water + mc(ΔT) |ice + Lm |ice = 0
Final T = [(m*c*T) |water + (m*c*T) |ice - (L*m) |ice] / [m*c |water + m*c |ice]
Final T = [(.122*4.18*364) + (.0137*2.108*273) - (334*.0137)] / [.122*4.18 + .0137*2.108]
[STRIKE]Final T = 77.63K[/STRIKE]
IS WRONG
What am I doing wrong??