# Not freezeing water

1. Oct 1, 2008

### moe7404

moe in wichita ks
if i have 32 oz of water (in a reg plastic soft drink cup) that is 78 deg f and i put it in a freezer that is 0 deg f how long can i leave it in before it freezes? i realy am going to test this out.

2. Oct 1, 2008

### stewartcs

Depends on the cooling rate of your freezer. The heat energy required to be removed from the water to freeze it would be:

$$-Q_{out} = mC \Delta{T}$$

Divide that by your cooling rate and you’ll have the time.

CS