Temperature change of ice water

AI Thread Summary
To determine the final temperature of the watermelon submerged in icy water, the energy exchange must be analyzed using the equation Q = mcT, where c represents the specific heat capacity of water. The energy lost by the watermelon as it cools down will equal the energy gained by the water as it warms up. Given that the watermelon weighs 25 pounds and starts at 29.4 degrees C, while the water is at 0 degrees C, the setup involves calculating the heat transfer between the two. The problem emphasizes the importance of setting up the equations correctly rather than simply providing the answer. Understanding the principles of energy conservation is key to solving this type of thermal equilibrium problem.
kmarlow123
Messages
4
Reaction score
0
A tub of icy water at 0 degrees C hold 100 gallons. You put a 25 pound watermelon with a temperature of 29.4 degrees C. The tub is wrapped in blankets to avoid heat loss. What will be the final temperature of the watermelon, considering that a watermelon is mostly water?
 
Physics news on Phys.org
Would you like to make some sort of attempt at the answer?
 
I am attempting to help my nephew with the problem but I can't remember how to go about setting up a problem like this, I don't need the answer, just some help on setting it up.
 
Sorry - there is a homework forum which puts up a template to fill in what you have done so far. There is no point in us just supplying answers to homework questions

There is an equation linking the amount of energy to the temperature change
Q = mcT, where c is the specific heat capacity of water

The energy lost by the watermelon = the energy gained by the water.
 
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »
Thread 'Correct statement about a reservoir with an outlet pipe'

Thread 'Correct statement about a reservoir with an outlet pipe'

The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater than speed at the water surface (ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not? (iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...
View full post »

Similar threads

What is the Final Temperature When Mixing Water and Ice, Assuming All Ice Melts?
Replies
12
Views
994
I try to solve a thermodynamics problem on heat transfer
Replies
3
Views
2K
How much ice to cool down this water?
Replies
17
Views
5K
The Mystery of Heat Loss: Examining Ice Melting Without Heat Loss
Replies
11
Views
2K
Confusion about whether to use the specific heat of water or ice
Replies
4
Views
2K
Finding equilibrium temperature when there are phase changes
Replies
2
Views
1K
Heat question -- Ice cube in a cup of water....
Replies
7
Views
10K
Mass of Ice required to achieve a certain final Temperature
Replies
3
Views
2K
Calorimetry - finding the final temperature of a system of ice and water
Replies
7
Views
2K
Calculate the Mass of Ice cubes needed to cool a soft drink
Replies
10
Views
3K

Hot Threads

Recent Insights

Back
Top