9giddjl
Nov19-08, 06:34 AM
1. The problem statement, all variables and given/known data
An ice tray containing 200 g of water at 25 degrees celecius is placed in the freezer. How much heat energy has to be removed to change the water into ice at -4 degrees celcius?
2. Relevant equations
Q= mc(Tf-Ti) + MLf + mc(Tf-Ti)
3. The attempt at a solution
I know that the water is changing into ice however im stumped because I don't know if the water is turning to -4 degrees celcius or 0 degrees celcius?
Any help will be muchly appreciated
Thankyou
An ice tray containing 200 g of water at 25 degrees celecius is placed in the freezer. How much heat energy has to be removed to change the water into ice at -4 degrees celcius?
2. Relevant equations
Q= mc(Tf-Ti) + MLf + mc(Tf-Ti)
3. The attempt at a solution
I know that the water is changing into ice however im stumped because I don't know if the water is turning to -4 degrees celcius or 0 degrees celcius?
Any help will be muchly appreciated
Thankyou