What minimum heat is needed to bring 250 g of water at 20 ∘C to the boiling point and completely boil it away? The specific heat of water is 4190 J/(kg⋅K) and its heat of vaporization is 22.6×105 J/kg.
1 answer:
Answer:633.8 KJ
Explanation:
Given
mass of water
Initial temperature
Final temperature
Specific heat of water =4190 J/kg-k
heat of vaporization
Heat required for process =heat to raise water temperature from 20 to 100 +Heat to vapourize water completely
Q=mc
Q=
Q=
Q=
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