3.93 If you want to lose 1 lb of “body fat," which is 15% water, how many kilocalories do you need to expend? (3.5)

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3.91 Calculate the heat of fusion of the following situations: (3.7)
a. 11.2 kcal of energy is absorbed to melt 140 g of a compound Z
b. 2.8 kJ of energy is absorbed to melt 60 g of a compound Y
3.92 The melting point of benzene is 5.5 °C and its boiling point
is 80.1 °C. Sketch a heating curve for benzene from 0 °C to
100 °C. (3.7)
a. What is the state of benzene at 15 °C?
b. What happens on the curve at 5.5 °C?
c. What is the state of benzene at 63 °C?
d. What is the state of benzene at 98 °C?
e. At what temperature will both liquid and gas be present?
Clinical Applications
3.93 If you want to lose 1 lb of "body fat," which is 15% water, how
many kilocalories do you need to expend? (3.5)
3.94 A young patient drinks whole milk as part of her diet.
Calculate the total kilocalories if the glass of milk contains
12 g of carbohydrate, 9 g of fat, and 9 g of protein. (Round off
answers for each food type to the tens place.) (3.5)
3.95 What is freeze-drying in food storage? How is bacterial activity
affected by this? (3.7)
3.96 The highest recorded body temperature that a person has
survived is 46.5 °C. Calculate that temperature in degrees
Fahrenheit and in kelvins. (3.3)
An ice bag containing 225 g of ice at 0 °C was used to treat
sore muscles. When the bag was removed, the ice had melted
and the liquid water had aumptraturt vI J2.V
PHow many
Transcribed Image Text:1 3 4 3.91 Calculate the heat of fusion of the following situations: (3.7) a. 11.2 kcal of energy is absorbed to melt 140 g of a compound Z b. 2.8 kJ of energy is absorbed to melt 60 g of a compound Y 3.92 The melting point of benzene is 5.5 °C and its boiling point is 80.1 °C. Sketch a heating curve for benzene from 0 °C to 100 °C. (3.7) a. What is the state of benzene at 15 °C? b. What happens on the curve at 5.5 °C? c. What is the state of benzene at 63 °C? d. What is the state of benzene at 98 °C? e. At what temperature will both liquid and gas be present? Clinical Applications 3.93 If you want to lose 1 lb of "body fat," which is 15% water, how many kilocalories do you need to expend? (3.5) 3.94 A young patient drinks whole milk as part of her diet. Calculate the total kilocalories if the glass of milk contains 12 g of carbohydrate, 9 g of fat, and 9 g of protein. (Round off answers for each food type to the tens place.) (3.5) 3.95 What is freeze-drying in food storage? How is bacterial activity affected by this? (3.7) 3.96 The highest recorded body temperature that a person has survived is 46.5 °C. Calculate that temperature in degrees Fahrenheit and in kelvins. (3.3) An ice bag containing 225 g of ice at 0 °C was used to treat sore muscles. When the bag was removed, the ice had melted and the liquid water had aumptraturt vI J2.V PHow many
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