abdirisak33
25.03.2020 •
Physics
Steam at 100°C is added to ice at 0°C. Find the temperature when the mass of steam is 10 g and
the mass of ice is 50 g. The specific heat of water is 4186 J/kg°C, its latent heat of fusion is 3.33x105 J/kg and its heat of vaporization is 2.26x106 J/kg.
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Ответ:
The final temperature of the mixture of steam and ice is 40.36 ⁰C.
The given parameters:
Temperature of the steam, T = 100⁰CTemperature of the ice, t = 0⁰CMass of the steam, m = 10 gMass of ice = 50 gThe final temperature of the mixture of steam and ice is calculated as follows;
Thus, the final temperature of the mixture of steam and ice is 40.36 ⁰C.
Learn more about final temperature of mixtures here: link
Ответ:
Explanation:
First of all, we have to calculate the heat released by the steam whem it turns into liquid water. This is given by:
where
is the mass of steam
is the latent heat of vaporization
Substituting,
Now we find the heat absorbed by the ice when it turns into liquid water:
where
is the mass of ice
is the latent heat of fusion
So,
Then, we call:
the heat absorbed by the ice (now liquid water) till reaching the equilibrium temperature T, where
is the specific heat capacity of water
the heat released by the steam (now liquid water) till reaching the equilibrium temperature T
Since the total heat absorbed must be equal to the total heat released, we have:
And now we can solve to find T:
Ответ: