Download - Chapter 9 Thermal Energy
Transcript
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Chapter 9Thermal Energy
9.5 Heat Units are Energy Units
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One calorie
• The energy needed to change 1 gram of H2O by 1
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Joules
4.184 J = 1 calorie
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1000 calories
• 1 kilocalories• 1 kcal• 1 Calorie (food calorie)
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Example 1
Convert 245 calories to kilocalories.
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Example 2
Convert 4.50 kilocalories to calories.
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Example 3
Convert 3800 calories to Calories.
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Example 4
Convert 65 Calories to calories.
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Example 5
Convert 830 calories to joules.
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Example 6
Convert 364 joules to calories.
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Example 7
Convert 9008 joules to Calories.
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Example 8
Convert 160 Calories to joules.
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Ex: Determining the Energy Content of Food