- #1
emmfranklin
- 7
- 0
Homework Statement
i getting the wrong the answer
i am
trying to find the specific heat capacity of brass
using copper calorimeter
Data :
mass of brass bob= 32.5gm
mass of calorimeter = 39.7 gm
mass of water + calorimeter = 93.9gm
mass of water = 93.9 - 39.7 = 54.2g
specific heat of water = 4.2 j/gm deg Cel
specific heat of copper = 0.382 j/gm deg cel
Temp of water = 23 deg cel
Temp of brass = 94 deg cel
temp of mixture = 47 deg cel
Homework Equations
formulas used..
part A
(Mc*cc + Mw*cw)(T1-T2)
(mass of the calorimeter* specific heat of the calorimeter + mass of the water*specific heat of the water)*Fall in the temperature.
Part B
C=H/mΔT
The Attempt at a Solution
part A being solved
(mass of the calorimeter* specific heat of the calorimeter + mass of the water*specific heat of the water)*Fall in the temperature.
(39.7 * 0.386) + (54.2 * 4.2) * (47-23)
(15.3242 + 227.64) * 24
242.9642 * 24
5831.1408
part b being solved.
C=H/mΔT
= 5831.1408/ 32.5 * 47
= 5831.1408 / 1527.5
= 3.8174407856
specific heat of brass = 3.8174407856 j/gm deg cel
this answer is wrong
the expected answer is 0.3817
where am i going wrong...