36.0g of steam at 100.0 degrees celcius was condensed to water and cooled to 25 degrees celcius. Find the heat released (in kJ)
I have the data for heat of fusion of ice (6.01 kJ/mol), the heat of vaporization of water (40.65 kJ/mol), and the specific heat Capacity of ice, water and steam. I DONT however have the heat of condensation of steam... and I'm really not sure how to find it. I know its a total energy problem, so kinetic energy + potential energy --> answer (total energy). The answer to the entire problem is given (92.5 kJ) but I dont know how to get it.
Any help is VERY much appreicated! My diploma exam is on monday!
2007-08-11 06:38:57 · 3 answers · asked by sahariah 3 in Science & Mathematics ➔ Chemistry
The needed value is 34.26 J / g °C
36.0 x ( 100 - 25 ) x 34.26 = 92.502 J = 92.5 kJ
2007-08-11 06:51:20 · answer #1 · answered by Dr.A 7 · 0⤊ 1⤋
"Heat of condensation" of steam is merely heat of vaporisation of water in reverse! Just put the value as negative.
2007-08-11 13:51:58 · answer #2 · answered by Gervald F 7 · 0⤊ 1⤋
energy is the ability to do work
2007-08-11 20:56:06 · answer #3 · answered by Anonymous · 0⤊ 1⤋