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WorksheetsReviewer in Gen. Chem. 2 - Midterms
Total questions: 15
Worksheet time: 13mins
Which of the following statement is incorrect about Kinetic Molecular Theory?
Matter is made up of particles.
Energy exist in all particles of matter.
All particles of matter are constantly moving.
The temperature of the particles doesn't influence the state of matter.
Which of the following intermolecular forces is the weakest?
Dipole-dipole interaction
London dispersion forces
Hydrogen bonding
Ion-dipole interaction
Which of the following intermolecular forces can only be found on polar molecules?
Dipole-dipole interaction
London dispersion forces
Hydrogen bonding
Ion-dipole interaction
Which of the following statements concerning surface tension is correct?
Surface tension will be higher for molecules with stronger intermolecular forces of attraction.
Surface tension will be lower for liquids with stronger intermolecular forces of attraction.
Surface tension will be higher for compounds with weaker intermolecular forces of attraction.
Surface tension will be lower for elements with weaker intermolecular forces of attraction.
Which of the following statements concerning vapor pressure is correct?
Vapor pressure will be higher for molecules with stronger intermolecular forces of attraction.
Vapor pressure will be lower for molecules with stronger intermolecular forces of attraction.
Vapor pressure will be higher for molecules with weaker intermolecular forces of attraction.
Vapor pressure will be higher lower ments with weaker intermolecular forces of attraction.
Which of the following best describes the difference between amorphous and crystalline solids?
Amorphous solids have randomly distributed molecules whereas crystalline solids have regular arranged molecules.
Amorphous solids have indefinite melting points, whereas crystalline solids have definite melting points.
Amorphous solids have isotropic physical properties, whereas crystalline solids have anisotropic physical properties.
All of the above
Which of the following best describes the difference between amorphous and crystalline solids?
At 1 atm and temperature less than 0°C, water is in solid form.
At 1 atm and temperature greater than 100°C, water is in liquid form.
At 1 atm and temperature between 0°C and 100°C, water is in gas form.
All of the above
It is a graph in which a substance is subjected to decreasing temperature against time to measure the amount of energy it absorbs and the change of its state.
Heating curve
Melting curve
Cooling curve
Deposition curve
A vessel contains 0.7 moles H2, 3.0 moles N2, and 2.4 moles F2. What is the mole fraction of F2?
0.40
0.41
0.39
0.38
If 8.22 moles of KBr are dissolved in 3.52 kg of water, what is the molality of the KBr solution?
2.66 mol/kg
2.33 mol/kg
2.44 mol/kg
2.34 mol/kg
FACT or BLUFF: Currently we have 5 classifications of matter namely, Gas, Liquid, Solid, Plasma and Quantum condensate.
(a)
FACT or BLUFF: Elements performed chemical bonding to stably exist in a normal environment
(a)
FACT or BLUFF: Water has high surface tension, boiling point, and capillary action.
(a)
FACT or BLUFF: Sublimation is the phase change of a matter from solid to gas.
(a)
FACT or BLUFF: Stoichiometry is the scientists' way of measuring element and other chemicals in a chemical reaction.
(a)
