G1
Which of the following is TRUE about Boyle’s Law?
A. Volume of a gas is directly proportional to its pressure
B. Volume of a gas is inversely proportional to its pressure
C. Volume of a gas is directly proportional to its temperature
D. Volume of a gas is inversely proportional to its temperature
B. Volume of a gas is inversely proportional to its pressure
A 132 mL gas sample is measured at 38°C. If the pressure remains constant, what will be its volume at 10°C?
A. 12 012 mL
B. 1201.2 mL
C. 120.12 mL
D. 12.012 mL
C. 120.12 mL
Which of the following examples is highly compressible at high pressure and expandable at high temperature?
A. Aluminum sheet
B. Ice
C. Oxygen gas
D. Water
C. Oxygen gas
Helium occupies 10 L at STP. How many moles of helium are present?
A. 0.15 mole
B. 0.25 mole
C. 0.35 mole
D. 0.45 mole
D. 0.45 mole
Which of the following is a monomer?
A. Amino acid
B. Carbohydrate
C. Lipid
D. Protein
A. Amino acid
Which gas law explains the relationship between pressure and temperature at constant volume?
A. Avogadro’s Law
B. Boyle’s Law
C. Charles’ Law
D. Gay-Lussac’s Law
D. Gay-Lussac’s Law
A fire extinguisher has a pressure of 10.27 atm at 25°C. What is the pressure at 75°C?
A. 10.27 atm
B. 11.99 atm
C. 14.28 atm
D. 16.30 atm
B. 11.99 atm
What are the components of a triglyceride?
A. 1 glycerol and 1 cholesterol
B. 1 glycerol and 2 fatty acids
C. 1 cholesterol and 2 fatty acids
D. 1 glycerol and 3 fatty acids
D. 1 glycerol and 3 fatty acids
A balloon filled with helium is warmed from 160 K to 315 K at constant pressure. What happens to its volume?
A. It decreases
B. It remains the same
C. It increases
D. It increases then decreases
C. It increases
Which monosaccharide is produced during photosynthesis?
A. Fructose
B. Galactose
C. Glucose
D. Maltose
C. Glucose
According to Avogadro, how many particles of gas occupy a volume mole of any gas at standard temperature and pressure?
A. 6.02 x 10^21 B. 6.02 x 10^23
C. 6.02 x 10^25 D. 6.02 x 10^27
B. 6.02x10^23
What do all lipids have in common? They are all ________________.
A. composed of fatty acids C. water insoluble
B. energy source D. hormones
C. water insoluble
Why can air still be pumped into an already inflated balloon?
A. Balloons are plastic
B. The air inside is hot
C. Balloons look better when bigger
D. Air molecules can be compressed
D. Air molecules can be compressed
Which is composed of two monosaccharides?
A.Fructose B. galactose
C. glucose D. sucrose
D. sucrose
What is the pressure exerted by a 0.25 mole sulfur hexafluoride in a steel vessel having a capacity of 1250 mL at 70.0oC?
A. 5.63 atm
B. 6.53 atm
C. 7.53 atm
D. 8.65 atm
A. 5.63 atm
Which element does NOT comprise lipids?
A. Carbon
B. Hydrogen
C. Oxygen
D. Sulfur
D. Sulfur
Why is butter a solid at room temperature, while vegetable oil is a liquid?
A. Butter is a polar molecule and vegetable oil is nonpolar molecule
B. Butter is a nonpolar molecule and vegetable oil is polar molecule
C. Butter is a saturated fat and vegetable oil is unsaturated fat
D. Butter is a unsaturated fat and vegetable oil is saturated fat
C. Butter is a saturated fat and vegetable oil is unsaturated fat
An aerosol can with a pressure of 4.0 atm and temperature of 27oC is thrown into a campfire. The temperature of the can reaches 400oC and the pressure inside exceeds 8.0 atm. What do you expect to happen to the can?
A. The can will explode
B. The can will shrink
C. The can will not explode
D. The can will only expand
A. The can will explode
Which is true about monosaccharides?
A. It is called complex carbohydrates
B. It is the simplest form of carbohydrates
C. It is made up of several monomer units
D. It is composed of carbon, nitrogen and phosphorus
B. It is the simplest form of carbohydrates
A given mass of gas has a volume of 893 mL at 33oC and 480 torr. What is the volume of the gas at 30oC and 210 torr of pressure and the amount of gas is constant?
A. 2021.13 mL B. 2120.13mL
C. 2221.13 mL D. 2321.13 mL
A. 2021.13 mL
Freon in an air-conditioning unit has a volume of 0.30 liter. It is allowed to function in a room where the pressure is about 628 mmHg. Assuming that the temperature is in constant state, what is the final pressure of Freon when its volume is increased to 0.95 liters?
A. 1.983 mmHg B. 19.83 mmHg
C. 198.3 mmHg D. 1983 mmHg
C. 198.3 mmHg
Nutritional chemists have found that burning 1 gram of fat releases twice the amount of heat as burning 1 gram of starch. Based on this information, which type of biomolecule would cause a person to gain more weight?
A. carbohydrate
B. fat
C. protein
D. nucleic acid
B. fat
A 132 mL of gas is measured at 38oC. If the pressure remains constant, what will be the volume of the gas at 10oC?
A. 12 012 mL
B. 1201.2 mL
C. 120.12 mL
D. 12.012 mL
D. 12.012 mL
What is the main function of carbohydrates? Carbohydrates __________________.
A. consume energy C. repair body tissue
B. provides immediate energy D. speed up chemical reaction
B. provides immediate energy
A balloon filled with helium is warmed and the temperature is changed from 160 K to 315 K. At constant pressure, what will happen to the new volume of the balloon?
A. It will decrease
B. It will increase
C. It will remain the same
D. It will increase then decrease
B. It will increase