Exam - Faculty.utep.edu

87) The energy stored in the chemical bonds of a carbohydrate molecule is
A) specific heat.
B) kinetic energy.
C) potential energy.
D) work.
E) a calorie.
88) The energy of motion is referred to as
A) work.
B) freezing.
C) specific heat.
D) potential energy.
E) kinetic energy.
89) When an electric oven is used, electrical energy is converted to
A) heat energy.
B) magnetic energy.
C) solar energy.
D) radiant energy.
E) potential energy.
90) Global warming is believed to result from all of the following except
A) burning of fossil fuels.
B) increasing levels of carbon dioxide in the atmosphere.
C) deforestation.
D) movement of the earth closer to the sun.
E) carbon dioxide trapping the heat produced by the sun.
91) How many calories are required to convert 16.5 g of ice at 0.0eC to liquid water at 32.0eC The heat of fusion of
water is 80.0 cal/g.
A) 42,500 cal B) 530 cal C) 1850 cal D) 1320 cal E) 80.0 cal
92) The specific heat of a substance is the amount of heat needed to
A) change 1 g of the substance from the solid to the liquid state.
B) raise the temperature of 1 g of the substance by 1eC.
C) change 1 g of the substance from the liquid to the solid state.
D) convert 1 g of a liquid to gas.
E) convert 1 g of a solid to a gas.
93) How many calories are required to raise the temperature of a 35.0 g sample of iron from 25eC to 35eC Iron has
a specific heat of 0.106 cal/g eC.
A) 37 cal B) 1.1 cal C) 3.7 cal D) 93 cal E) 130 cal
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