Thinking Question on Latent Heat, Help?
1 Answer
Final temperature is
Mixture is
Explanation:
We know that in such interactions heat is gained by one and heat is lost is by the other.
Also that the heat gained/lost is given by
where
In the given problem heat is lost by steam and gained by ice.
We know that latent heat of fusion of water
In the given question ice is at
Step. 1. It is clear that ice will melt and will become water at
On the other hand we have
Comparing (1) and (2) we assess that we have excess heat from (2) which can be given to ice to melt it.
Now comparing heat lost with heat gained in (1), (2) and (3), the required heat for melting of ice will be provided by change of state of steam.
Difference between the heat lost and gained
Step 2.
Now the difference between heat gained and heat lost from (1) to (4)
This can be supplied by
The remaining steam at
Since both the components are now at the same temperature, there is no further exchange of heat.