- #1
Aeonic333
- 12
- 0
My solution (179 g) to the problem below is slightly less than what the book says it should be (190 g)...
A vessel whose walls are thermally insulated contains 2.40 kg of water and 0.450 kg of ice, all at a temperature of 0.0 degrees Celsius. The outlet of a tube leading from a boiler in which water is boiling at atmospheric pressure is inserted into the water. How many grams of steam must condense inside the vessel (also at atmospheric pressure) to raise the temperature of the system to 28.0 degrees Celsius? Neglect the heat transferred to the container.
I set the problem up like this...
Qw + Qi + Hf + Hv = 0
Then I split Qw into two separate methods of heat transfer, since there is condensed steam changing from 100 degrees Celsius to 28.0 degrees Celsius, and liquid water change from 0.0 degrees Celsius to 28.0 degrees Celsius. This seems logical to me, but according to the book I am wrong. Any suggestions?
Tim
A vessel whose walls are thermally insulated contains 2.40 kg of water and 0.450 kg of ice, all at a temperature of 0.0 degrees Celsius. The outlet of a tube leading from a boiler in which water is boiling at atmospheric pressure is inserted into the water. How many grams of steam must condense inside the vessel (also at atmospheric pressure) to raise the temperature of the system to 28.0 degrees Celsius? Neglect the heat transferred to the container.
I set the problem up like this...
Qw + Qi + Hf + Hv = 0
Then I split Qw into two separate methods of heat transfer, since there is condensed steam changing from 100 degrees Celsius to 28.0 degrees Celsius, and liquid water change from 0.0 degrees Celsius to 28.0 degrees Celsius. This seems logical to me, but according to the book I am wrong. Any suggestions?
Tim