Can't the trick (finding final temperature)

AI Thread Summary
To find the final temperature of the coffee after adding the ice cube, the heat lost by the coffee must equal the heat gained by the ice. The specific heat of water and the latent heat of fusion are crucial for these calculations. The user has attempted the problem multiple times but is encountering a consistent error in their calculations. They understand the principle of energy conservation in an isolated system but are seeking clarification on their approach. A detailed step-by-step solution is requested to resolve the confusion.
nabilsaleh
Messages
14
Reaction score
0

Homework Statement



An insulated Thermos contains 130 cm3 of hot coffeeat 80.0 degrees C. You put in a 12.0 g ice cube at its meltingpoint to cool the coffee. By how many degrees has your coffeecooled once the ice has melted? Treat the coffee as though it werepure water and neglect energy exchanges with the environment.


Homework Equations



The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg. The density of water is 1.00 g/cm3.



The Attempt at a Solution




I know the way to solve it but there is a little bug that's cuzing me to go off track and end up getting a wrong answer! I've tried solving this question at least 13 times now. I know that sum of all Heats in the system is equal to zero because it's kinda isolated system. And i know that the heat lost by coffee is equal to the heat gained by the ice!
 
Physics news on Phys.org
Show your work, please.

ehild
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »

Similar threads

Calorimetry - finding the final temperature of a system of ice and water
Replies
7
Views
2K
Mass of Ice required to achieve a certain final Temperature
Replies
3
Views
2K
I try to solve a thermodynamics problem on heat transfer
Replies
3
Views
2K
Final temperature after pouring soda into glass with ice....
Replies
5
Views
6K
Finding equilibrium temperature when there are phase changes
Replies
2
Views
1K
Impact of container on final temperature of system
Replies
8
Views
2K
Ice in water question - what is final temperature?
Replies
11
Views
5K
Final temperature of ice mixed with water
Replies
9
Views
4K
Calculating final temperature in insulated container
Replies
1
Views
2K
Heat and final temperature problem
Replies
8
Views
4K

Hot Threads

Recent Insights

Back
Top