SCIENCE Q4
Quiz by FJM
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- Q1
Why is gas easier to compress than a liquid or a solid?
The space between gas particles is much less than the space between liquid or solid particles.
The volume of gas particles is small compared to the overall volume of gas.
Its volume increases more under pressure than an equal volume of liquid does.
Its volume increases more under pressure than an equal volume of solid does.
30s - Q2
If a balloon is squeezed, what happens to the pressure of the gas inside the balloon?
It increases.
The pressure depends on the type of gas in the balloon.
It stays the same.
It decreases.
30s - Q3
According to Charles’ Law, as the volume occupied by a given sample of gas at constant pressure is decreased, the temperature will __________.
become zero.
The change cannot be predicted.
decrease
increase
30s - Q4
Which of these changes would NOT cause an increase in the pressure of a gaseous system?
The temperature is increased.
Additional amounts of the same gas are added to the container
The container is made larger
Another gas is added to the container.
30s - Q5
If the temperature remains constant, V1 and P1 represent the original volume and pressure, and V2 and P2 represent the new volume and pressure, what is the mathematical expression for Boyle’s law?
P2V1 = V2P1
V1 = V2P2/P1
V1V2 = P1P2
V1P1 = V2P2
30s - Q6
A sample of oxygen occupies 560 mL when the pressure is 800 mm Hg. At constant temperature, what volume does the gas occupy when the pressure decreases to 700 mm Hg?
490 mL
640 mL
80 mL
600 mL
30s - Q7
How do the particles behave when the Kelvin temperature of an enclosed gas is doubled?
Particles strike the walls of the container with less force
Particles decrease their average kinetic energy.
Particles occupy a smaller volume
Particles move faster
30s - Q8
Which statement best explains why a hot-air balloon rises when the air in the balloon is heated?
Some of the gas escapes from the bottom of the balloon, thus decreasing the mass of gas in the balloon. This decreases the density of the gas in the balloon, which lifts the balloon.
The temperature of the gas is directly related to its pressure. The pressure therefore increases, and this lifts the balloon.
Hot air rises inside the balloon, and this lifts the balloon.
The temperature of a gas is directly related to its volume. Thus, the volume of the balloon increases, making the density smaller. This lifts the balloon.
30s - Q9
Which phenomenon best illustrates Charles’ Law?
Breathing apparatus being used by a patient.
Carbon dioxide is dissolved in water.
The leavening agent causes the fluffiness of cake products.
Expansion of the balloon as it is being submerged in hot water.
30s - Q10
If the temperature of a fixed quantity of gas decreases and the pressure remains unchanged, __________.
its volume becomes zero
its volume decreases
its volume is unchanged
its volume increases
30s - Q11
Which biomolecules are significant features of the cell membrane?
protein and lipid
nucleic acid and protein
lipid and nucleic acid
carbohydrate and nucleic acid
30s - Q12
Lactose is a disaccharide, formed when glucose and __________ are bonded together.
Galactose
Maltose
Fructose
Glucose
30s - Q13
Atom is the basic unit of a chemical element. What are the atoms that makeup carbohydrates?
C, H, O, N, and P
C, H, O, and N
C, H, and O
C, H, and N
30s - Q14
The general term for a large molecule made up of many similar subunits is __________.
peptide
helix
functional group
polymer
30s - Q15
Nutritional chemists have found that burning 1 gram of fat releases twice the amount of heat energy as burning 1 gram of starch. Based on this information, which type of biomolecule would cause a person to gain more weight?
fat
proteins
nucleic acid
carbohydrate
30s