1.) A sample of butane (C4H10) gas is burned inside a calorimeter that contains 2.0 kg of water. The temperature of the water rises by 10.2 degrees Celcius. How much heat was produced in the reaction?
2.) A 5.5-g sample of steel wool is ignited in a calorimeter containing 1.75 kg of water. The temperature of the water rises from 22.50 degrees Celcius. What is the heat produced by this chemical change?
2.) A 5.5-g sample of steel wool is ignited in a calorimeter containing 1.75 kg of water. The temperature of the water rises from 22.50 degrees Celcius. What is the heat produced by this chemical change?
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85.3 joules. Is number one.
164.6 joules is number two
164.6 joules is number two
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1.) (2000 g) x (10.2 deg) = 20400 calories
2.) There is trouble here. The problem states "water rises from 22.50 degrees Celcius" but does not say what the temperature rose to. So instead, assuming the problem was intended to be "water rises by 22.50 degrees Celcius":
(1750 g) x (22.50 deg) = 39375 calories
2.) There is trouble here. The problem states "water rises from 22.50 degrees Celcius" but does not say what the temperature rose to. So instead, assuming the problem was intended to be "water rises by 22.50 degrees Celcius":
(1750 g) x (22.50 deg) = 39375 calories