00:01
Okay, so let's quickly calculate the final temperature between the body temperature of a man, which is s .a t -subscript m, which is 37 degrees celsius, that's the body temperature of it, not my human being.
00:18
And then the temperature of the drink you took is 12 degrees celsius.
00:24
All right.
00:25
Now, since the body temperatures are different, there will be a transfer of thermal energy.
00:32
Okay so the heat lost the heat lost by man is equal to heat gain by drink heat gained i drink my energy is concerned so we need to take note of that assuming that no temperature is transferred to the surrounding so the heat loss by man is equal to the heat gain by the drink good now the mass of the man is 70 mass of man is 70 mass of the man is 70 how do we calculate for the mass of the drink he consumed how do we calculate for the mass of the drink he consumed all right don't forget mass is equal to density row times the volume now the volume of the drink is 0 .355 liters if you convert this to meter cube they should give you about 0 .00 and 0355 meter cube.
01:53
Let me rewrite this.
01:55
0 .0 .00355 meter cube.
02:02
Okay.
02:03
All right.
02:04
So that is the volume of what the salt drink you took.
02:09
So to calculate the mass of the drink as at this volume, we use this formula.
02:14
We know that the density of water is thousand...