ATTENTION:
Kindly note that you will be presented with 50 questions randomized from the NOUN question bank. Make sure to take the quiz multiple times so you can get familiar with the questions and answers, as new questions are randomized in each attempt.
Good luck!
CHM103
1 / 50
The gas law that explain the effusion of gas is ____________
2 / 50
2. Which of these alkanes is expected to have the highest viscosity?
3 / 50
A plot showing the variation of volume with temperature at constant pressure is called __________
4 / 50
At relatively low pressure, there are no ___________ forces between gas molecules
5 / 50
The volume occupied by 1 mole of oxygen gas at s.t.p. is ________ dm3
6 / 50
Physical Chemistry is concern with two major aspects, namely ability to change and _____
7 / 50
Apparatus that arc basically used for determining the melting points of substances are called ____________
8 / 50
8. An ideal gas differs from a real gas in that the molecules of an ideal gas __________.
9 / 50
At constant temperature, the gas law that is most suitable is called _____ law
10 / 50
10. According to the kinetic theory of gases, a gas can be compressed much more than a liquid or solid because _________
11 / 50
In a gas. the molecules on the average are separated by large ______ distances
12 / 50
Gas molecules confined to a container are in a state of ____________ motion
13 / 50
An expression for the combined gas law can be expressed as ________
14 / 50
At low temperature and high pressure, gases tend to __________
15 / 50
The equation of ideal gas can be expressed as ______
16 / 50
At high temperature and low pressure, gases tend to undergo phenomena that is called ___________
17 / 50
The individual pressure of a gas in a mixture of gases is called ______
18 / 50
18. What is the average speed (actually the root-mean square speed) of a neon atom at 27 C?
19 / 50
19. The vapor pressure of pure ethanol at 60 °C is 0.459 atm. Raoult's Law predicts that a solution prepared by dissolving 10.0 mmol naphthalene (nonvolatile) in 90.0 mmol ethanol will have a vapour pressure of __________ atm.
20 / 50
20. The concentration of KBr in a solution prepared by dissolving 2.21 g of KBr in 897 g of water is __________ molal.
21 / 50
Temperature, length, time and mass are examples of ________
22 / 50
Meter, kelvin, second and kilogram are examples of _______
23 / 50
23. Which of the followings is not a characteristic of an ideal solution?
24 / 50
For 1 mole of an ideal gas, a plot of PV against T will give a straight line whose slope is equal to __________
25 / 50
A homogenous materials that contain only one substance is called a ___________
26 / 50
26. Distillation can be used to separate ________
27 / 50
At constant pressure, properties of gases that undergo changes are _______
28 / 50
A solution is prepared by dissolving calcium chloride in water and diluting to 500.0 mL. If this solution contains 44 ppm chloride ions, the concentration of calcium ions is __________ ppm.
29 / 50
29. A mixture of iron filings and copper filings could best be separated by _________
30 / 50
30. A liquid will "wet" a surface if: ______
31 / 50
The mathematical equation for Charles law can be written as ________
32 / 50
32. Which measurement describes the pressure of a gas?
33 / 50
33. In fractional distillation, a mixture of liquids is separated based on their _______
34 / 50
34. A sample of oxygen occupies 47.2 liters under a pressure of 1240 torr at 25 $^{o}C$. What volume would it occupy at 25$^{o}C$ if the pressure were decreased to 730 torr?
35 / 50
________ is an instrument that can be used to measure the strength of an acid or a base
36 / 50
The mathematical equation for Boyle's law can be written as ___________
37 / 50
A skillful process of identifying. substituting and using correct apparatus appropriately in the laboratory is called _____
38 / 50
The gas law that consider the total pressure of a gas as a function of the pressures exerted by the individual gases that make up the mixture is __________
39 / 50
A gas that obeys all the gas laws is called an ______
40 / 50
_________ of a gas is proportional to the mean kinetic energy of the molecules in a gas
41 / 50
Modern approach to chemistry deals with equilibrium properties, ability to change and ______
42 / 50
Numerical value of the universal gas constant is ____ J/K/mol
43 / 50
43. Which one of the following statements most accurately relates the properties of a liquid at room temperature with its intermolecular forces?
44 / 50
44. The Henry's law constant for helium gas in water at 30 °C is 0.00037 M/atm. When the partial pressure of helium above a sample of water is 0.650 atm, the concentration of helium in the water is __________ M.
45 / 50
Constituents in a solution can be separated by applying the principle of ___________
46 / 50
The temperature, above which a substances can exist only in gaseous state is called _________
47 / 50
47. Which of the followings will not diffract X-rays?
48 / 50
The Beckman thermometer IS used in the Beckman's apparatus for determining __________ of a substance
49 / 50
-______is a state of matter that does not have a definite shape nor volume
50 / 50
International system of unit or system international can be written as an acronym _______________
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