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