A student mixes 95.9g of water at temperature 69.3 C with 27.1g of water at temperature 24.7 in an insulated flask. What is the final temperature?
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Total mass of water = 95.9g + 27.1g = 123g of water.
By proportion ...
Hot water = (95.9g / 123g) x 69.3°C = 54°.
Cold water = 27.1g / 123g x 24.7°C = 5.4°
54°C + 5.4°C = 59.4°C Final temp.
By proportion ...
Hot water = (95.9g / 123g) x 69.3°C = 54°.
Cold water = 27.1g / 123g x 24.7°C = 5.4°
54°C + 5.4°C = 59.4°C Final temp.