- #1
SS2006
- 80
- 0
I got achem test tomororw and 2 questions didn't have asnwers for them so i want to make sure of them.
1) If 335 g of water at 24.5 degrees Celcius absorbed 2.66 kJ of energy, what is the final temperature of water
*2.66 = 335 * 4.184 * t + 24.5 (or 24.5 - t)? don't know
and
2)7.28 kJ of heat is released when 40.9 g of Br2 (bormine) vapour at 332 K condense to a liquid. What is the molar heat of vaporization of Br2.
i just want to make sure i got the right asnwers, cause these 2 don't have asnwers in our test revision sheet. thanks
1) If 335 g of water at 24.5 degrees Celcius absorbed 2.66 kJ of energy, what is the final temperature of water
*2.66 = 335 * 4.184 * t + 24.5 (or 24.5 - t)? don't know
and
2)7.28 kJ of heat is released when 40.9 g of Br2 (bormine) vapour at 332 K condense to a liquid. What is the molar heat of vaporization of Br2.
i just want to make sure i got the right asnwers, cause these 2 don't have asnwers in our test revision sheet. thanks