00:01
We have an end of a metal rod that is maintained at a temperature of 100 degrees celsius, and the other end has a temperature of 0 degrees celsius.
00:11
And this is done by an ice water mixture.
00:14
We're told the length of the rod is 70 centimeters, which convert it to meters, divided by 100.
00:21
It would be 0 .7 meters.
00:23
And it has an area of 1 .15 centimeters squared.
00:28
We're going to need to convert this to meters by dividing by 100 twice because of the square.
00:34
And so that gives us 1 .15 times 10 to the negative 4 meters square.
00:41
We're told that the heat conducted by the rod melts a mass of 9 .3 grams, dividing by a thousand to give us kilograms at 0 .093 kilograms.
00:56
Kilograms and it does so in a time period of 15 minutes.
01:00
And we want to convert this to seconds by multiplying times, excuse me there, by multiplying times 60 seconds and that gives us 900 seconds.
01:15
And so the first thing we're going to do is find the amount of energy used to change our phase.
01:21
This is a known amount for water, which is 334 times 10 to the 3...