Gigi DiMarco <[email protected]> wrote:
> I could say that this is false but I will be fair and I will say that this > is not true. From the missing file (Mizuno's data) we get the following > situation for the difference between water and ambient temperature > > (4h 2.5°C) (5h 2.9°C) (6h 3.1°C) (7h 3.2°C) (8h 3.2°C) (9h 3.2°C) (10h > 3.1°C) (11h 3.1°C) (12h 3.1°C) (13h 3.0°C) > (14h 2.9°C) (15h 2.8°C) (16h 2.7°C) (17h 2.6°C) (18h 2.5°C) > > were the temperatures are taken at the beginning of the hour. > > How do you explain this? > The ambient temperature is falling. The reactor is well insulated so it takes longer to cool off than the room does. That is all there is to it. You can simulate this easily with the following steps: 1. Fill a glass with warm water. 2. Measure the temperature difference between the water and air. 3. Move the glass to the refrigerator, and measure the difference between the water and the air in the refrigerator. 4. The second temperature difference will be much larger, because the water does not instantly cool off. Does that mean there is a source of heat in the water? No. If you do not understand this, you are not qualified to do calorimetry. I pointed this out before. I will not point it out again, and I will not discuss this with you again. - Jed
