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

In summary, when 1 kg of water at 100degC is mixed with 10kg of water at 0degC, the equilibrium temperature will be slightly above 0degC. The formula to use for this calculation can be found in an example on a physics website and there are also similar threads available for further clarification.
  • #1
moragan
3
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!
 
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  • #2
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?
 
  • #3
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
 
  • #5
thanks so much! that really helps!
 

1. What is equilibrium temperature?

Equilibrium temperature is the temperature at which a system is balanced and has no net energy transfer. It is the point at which the energy entering the system is equal to the energy being released, resulting in a stable temperature.

2. How is equilibrium temperature calculated?

Equilibrium temperature can be calculated using the Stefan-Boltzmann law, which states that the energy emitted by a blackbody is directly proportional to the fourth power of its absolute temperature. This law is commonly used to calculate the equilibrium temperature of planets and other celestial bodies.

3. What factors can affect equilibrium temperature?

The primary factors that can affect equilibrium temperature are the distance from a heat source, the albedo (reflectivity) of the surface, and the presence of greenhouse gases in the atmosphere, which can trap heat and increase the overall temperature. Other factors such as atmospheric pressure, rotation of the planet, and surface composition can also play a role.

4. How does equilibrium temperature relate to climate change?

Equilibrium temperature is closely linked to climate change, as it is affected by the amount of heat-trapping greenhouse gases in the atmosphere. When the equilibrium temperature of a planet or region increases, it can have significant impacts on the climate, leading to rising sea levels, more extreme weather patterns, and other environmental changes.

5. Can equilibrium temperature be altered?

Yes, equilibrium temperature can be altered through various means, such as reducing greenhouse gas emissions, using reflective materials on surfaces, or implementing geoengineering techniques. However, altering the equilibrium temperature can have unforeseen consequences and should be approached with caution.

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