A researcher studying the nutritional value of a new candy place is a 3.60 g sam

Question

A researcher studying the nutritional value of a new candy place is a 3.60 g sample of the candy inside a bomb calorimeter and combust it in excess oxygen. The observed temperature increase is 2.96°C. If the heat capacity of the calorimeter is 44.40KJxK^-1, how many nutritional calories are there per gram of the candy? A researcher studying the nutritional value of a new candy place is a 3.60 g sample of the candy inside a bomb calorimeter and combust it in excess oxygen. The observed temperature increase is 2.96°C. If the heat capacity of the calorimeter is 44.40KJxK^-1, how many nutritional calories are there per gram of the candy?

Explanation / Answer

Get:

m = 3.6 g of candy

Q = CCal*dT = 44.4*2.96 = 131.424 kcal

change kcal to Calorie via:

1 kcal = 1 Cal

Q = 131.424 Cal

this is per total mass

Q(unit per mass) = Q/mass = (131.424)/(3.6) = 36.506 Cal/g

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