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How much heat in kilojoules is released when 25.0 g of water is cooled from 85.0ºC to 40.0ºC The specific heat of water is 4.184 J(gC).?
Wiki User
∙ 7y ago
q = mC∆T where q=heat; m=mass of water; C=sp.heat; ∆T=change in temp.q = (25.0g)(4.184 J/g/deg)(45 deg)
q = 4707 J of heat released
Wiki User
∙ 7y ago
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Fifty grams of water cooled from 50 degrees to 10 degrees if the specific heat of wayer is 4.2 hoe much was released?
If fifty grams of water cooled from 50 degrees to 10 degrees, and the specific heat of water is 4.2, 135 kJ of heat was released.
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Fifty grams of water cooled from 50 degrees to 10 degrees if the specific heat of wayer is 4.2 hoe much was released?
If fifty grams of water cooled from 50 degrees to 10 degrees, and the specific heat of water is 4.2, 135 kJ of heat was released.
How much heat in kilojoules must be removed from a glass of water that contains 100g of water to lower it's temperature from 30c to 30c?
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How much heat in kilojoules must be removed from a glass of water that contains 100g of water to lower its temperature from?
~ 6.3 kilojoules When 1 g of water is cooled down by 1°C it releases 1 calorie so cooling 100g of water 15 times 1°C releases 1500 calories worth of heat. The transfer factor from calorie to joule is ~ 4.2 joules/calorie 1500 calories * 4.2 joules/calorie = 6300 joules = 6.3 kilojoules
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