calculate the heat gained by the water: Q=CmΔT heat lost by sample: ms* cs *(Ts-T) = mw *cw (T -Tcw) + mc *cc *(T-Tcw)  solve for the specific heat of the unknown  known unknown (ms) mass of unknown= 240.40g (Cs) specific heat of sample: ? (Ts) Temp initial of sample: assume 100°C   (mc) mass of dry cup: 31.3g   (mw) mass of water: 127.3g   (cw) specific heat of water: 4186 J/kg °C   (Tcw) initial temp of water: 12°C   (Cc) specific heat of cup: use Aluminium 900 J/kg °C   (T) final temp 23°C   (I tried it and I'm not sure if I have a correct answer, so if you can please do it step by step to show me where I made mistakes)

Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter12: Thermodynamic Processes And Thermochemistry
Section: Chapter Questions
Problem 29P
icon
Related questions
icon
Concept explainers
Question

calculate the heat gained by the water: Q=CmΔT

heat lost by sample: ms* cs *(Ts-T) = mw *cw (T -Tcw) + mc *cc *(T-Tcw) 

solve for the specific heat of the unknown 

known unknown
(ms) mass of unknown= 240.40g (Cs) specific heat of sample: ?
(Ts) Temp initial of sample: assume 100°C  
(mc) mass of dry cup: 31.3g  
(mw) mass of water: 127.3g  
(cw) specific heat of water: 4186 J/kg °C  
(Tcw) initial temp of water: 12°C  
(Cc) specific heat of cup: use Aluminium 900 J/kg °C  
(T) final temp 23°C  

(I tried it and I'm not sure if I have a correct answer, so if you can please do it step by step to show me where I made mistakes) 

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Thermochemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Principles of Modern Chemistry
Principles of Modern Chemistry
Chemistry
ISBN:
9781305079113
Author:
David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:
Cengage Learning