A 750 G Marshmallow Is Placed in a Calorimeter and Burned

question 21

Multiple Choice

A 7.50 g marshmallow is placed in a calorimeter and burned in excess oxygen.The temperature increases by 4.69 $\degree$ C.The calorimeter has a heat capacity of 22.3 kJ/ $\degree$ C.What is the approximate food value of marshmallows in Cal/g? (1 Cal = 4.184 kJ)

• A)1.60 Cal/g
• B)3.33 Cal/g
• C)13.9 Cal/g
• D)105 Cal/g
• E)25.0 Cal/g

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