- #1
Waffle24
- 15
- 2
Homework Statement
Hey there guys, first of all English is not my main language so it will be a little hard for me to say things in english. I am dutch native speaker so I will translate most of the things in english using google translator. I hope you guys are okay with that.
Task :
One wants the heat capacity of a calorimeter. It does so by one in the empty calorimeter, which has a temperature of 19.3 °C, 50 grams of benzene with a temperature of 13, 5 °C is added. This drops the temperature of the calorimeter to 15, 9 °C.
a)Calculate the value of the heat capacity of this calormeter.
b)Directly after this (the temperature of the calorimeter is still 15.9 °C), a Platinum bullet is added, which has a mass of 15.0 gram, in the calorimeter. This platinum ball has been kept in a glass flame beforehand; the temperature of the calorimeter runs to 23.7 °C . determine the temperature of the gas flame.
Okay, I had no problem answering a.
Now I did the same thing in b, but my answer does not match the one from my book. I tried to look if I missed any ##-## or ##+## sign , but still no luck. I even checked whether I filled the wrong number or not, and to me it seems that everything is correct. The Answer should be 604 °C , but I keep getting below 604 °C. I just want to know if I am doing something wrong or maybe the book answer could be wrong.
Homework Equations
##Q = m.c. \bigtriangleup T##
##Q = C .ΔT##
The Attempt at a Solution
I've uploaded 2 pictures of the calculations I did.
According to my book the answer I got for a is correct.