Joules (J) are a measure of energy.  Chemists often measure energy in calories (cal).  If 1 cal = 4.184 J, how many cal are equivalent to 48.3 J?

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Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

A: The SI unit of energy is Joule and 1 calorie (cal) is equal to 4.184 J. Now, consider the given…

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Q: J cal kJ 598 113 0.810

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Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

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Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

A: Given , 1 cal = 4.184 J 1kcal = 1000 cal

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Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

A: 1 calorie = 4.184 Joule  1 J = (1/4.184) cal  1 kJ = 1000 J  1 kJ = 239 cal

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A: 1 KJ = 0.239 Kcal  So  119 KJ = 119 X 0.239 Kcal             =  28.44 Kcal

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Q: How many Joules are there in 54.0 kcal? (1 cal = 4.184 J)

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