What is the Equilibrium Temperature When Mixing Hot and Cold Water?

AI Thread Summary
When mixing 1 kg of water at 100°C with 10 kg of water at 0°C, the equilibrium temperature will be slightly above 0°C. The forum participants discuss the need for a formula to calculate this temperature and share resources for better understanding. There is a focus on the concept of equilibrium as a balance between the hot and cold water. Some users express challenges in self-teaching and seek clarification on the calculations involved. Overall, the discussion emphasizes the importance of understanding thermal equilibrium in practical scenarios.
moragan
Messages
3
Reaction score
0
When 1 kg of water at 100degC is mixed with 10kg of water at 0degC, the equilibrium temperature will be:
a)exactly 0degC
b)exactly 50degC
c)exactly 100degC
d)slightly above 0degC



if anyone can post the formula to use for this that would be great! thanks!
 
Physics news on Phys.org
Welcome to the forum! What thoughts have you had about this problem? Is it part of something you've been doing recently at school etc? Are there any parts you remember from those lessons that may be useful here?
 
I'm taking an online course, so it's all self teaching... (it can get a little confusing at times) so i have to find most of the information myself, and this one just doesn't seem to be the same anywhere (or understandable).
i know that equilibrium is a state of rest or balance due to the equal action of opposing forces, but have no idea how to calculate the temperature...
thanks
 
thanks so much! that really helps!
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Back
Top