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Published byBuddy Pope Modified over 8 years ago
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Honors Chemistry Podcast 2.3 Joule Problems Q = mc T
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c = specific heat for water = 4.18 joules/ g o C m = mass of sample T = change in temperature of sample in o C
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Sample Problems 1)If 4.0 gram of water absorbs 1.0 KJ of heat, how much will the temperature of the water change?
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3) The temperature of a sample of water increases from 30. 0 C to 40. 0 C as 100. Joules of heat are added. What is the mass of the sample.
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5) What is the number of Joules of heat energy released when 25 grams of water is cooled from 20. 0 C to 10. 0 C.
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7) What temperature change in degrees Celsius is produced when 3.00KJ are absorbed by 100g of water?
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9) What is the final temperature after 340. joules is absorbed by 10.0g of water at 25°C
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11) How many grams of liquid water at 100°C can be vaporized to gaseous water at 100 °C by the absorption of 30.0KJ
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