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Sauron [17]
3 years ago
15

You add 50 mL of water at 20C to 200 mL of water at 70C. What is the most likely final temperature of the mixture?

Physics
2 answers:
Veseljchak [2.6K]3 years ago
5 0
100*20 + 200*80 = 300* T
T = 60
Bogdan [553]3 years ago
4 0

Answer:

Option (a)

Explanation:

Let c be the specific heat of water.

According to the principle of caloriemetry.

Heat lost by hot water = heat gained by cold water

200 x c x (70 - T) = 50 x c x (T - 20)

280 - 4T = T - 20

300 = 5T

T = 60 C

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