A slice of pizza has 500 kcal. If we could burn the pizza anduse all the heat to

Question

A slice of pizza has 500 kcal. If we could burn the pizza anduse all the heat to warm a 50-L container of cold water, what wouldbe the approximate increase in the temperature of the water?(Note: A liter of cold water weighs about 1 kg.) a. 50°C b. 5°C c. 10°C d. 100°C e. 1°C A slice of pizza has 500 kcal. If we could burn the pizza anduse all the heat to warm a 50-L container of cold water, what wouldbe the approximate increase in the temperature of the water?(Note: A liter of cold water weighs about 1 kg.) a. 50°C b. 5°C c. 10°C d. 100°C e. 1°C

Explanation / Answer

heat = mass x specific heat x temp. change

temp. change = heat/(mass x specific heat)

temp. change = 500,000 calories/(50,000 grams x 1 cal/gram C)

temp. change = 10 degrees C

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