12 June, 21:42
How much energy is released when 20.0 g of water is cooled from 50°C to 30°C (Cwater = 4.18 J / g*°C)
12 June, 22:50
We are supposed to find out the energy released by water when cooled from 50° C to 30°C.
We have the relation that,
Information is given that s=4.18 J / g*°C,
and ΔT is - 20° C.
Hence by substituting we get,
(minus symbol represents that energy is being released)
1672 J is release when water is cooled from 50° C to 30°C.
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