K kwu1 Member Joined Mar 23, 2011 Messages 194 Gender Male HSC 2012 Sep 9, 2011 #21 RANK 1 said: what are you on about? it says find the final temperature, given that the intial temperature is 18 so you plus 1.986 with 18 Click to expand... You're working for finding the change in temperature was confusing. I just clarified it for everyone else.
RANK 1 said: what are you on about? it says find the final temperature, given that the intial temperature is 18 so you plus 1.986 with 18 Click to expand... You're working for finding the change in temperature was confusing. I just clarified it for everyone else.
H hscishard Active Member Joined Aug 4, 2009 Messages 2,033 Location study room...maybe Gender Male HSC 2011 Sep 9, 2011 #22 maths lover said: i dnt get why you multiplied the 83kj by the 0.01. can you please explain. Click to expand... Because 83kJ of heat is released when 1 mol of Calcium Chloride is dissolved. The question states 0.01 mol is used so 0.01mol x 83kJ/mol = amount of heat released by 0.01 mol
maths lover said: i dnt get why you multiplied the 83kj by the 0.01. can you please explain. Click to expand... Because 83kJ of heat is released when 1 mol of Calcium Chloride is dissolved. The question states 0.01 mol is used so 0.01mol x 83kJ/mol = amount of heat released by 0.01 mol
