Hydrocarbons such as CH4 experience strong hydrogen bonding. True or False The p
ID: 1022249 • Letter: H
Question
Hydrocarbons such as CH4 experience strong hydrogen bonding.
True or False
The preferred phase of a substance at a given set of conditions is a balance between the _____ of the particles and intermolecular forces between the particles.
frequency
Identify the substance where the most significant intermolecular force would be the dispersion force.
NH3
Identify the substance for which the most significant intermolecular force will be the dispersion force.
(CH3)2CO
Liquids form spheres in free fall or zero gravity. Which of the following is the reason for this behavior?
The preferred phase of a substance at a given set of conditions is a balance between the _____ of the particles and intermolecular forces between the particles.
magnetic properties energy flammability wavelengthfrequency
Identify the substance where the most significant intermolecular force would be the dispersion force.
HCl HBr C2H6 NaOHNH3
Identify the substance for which the most significant intermolecular force will be the dispersion force.
NaCl NH3 HCl C3H8(CH3)2CO
Liquids form spheres in free fall or zero gravity. Which of the following is the reason for this behavior?
liquid vapor pressure surface tension viscosity low density entropyExplanation / Answer
Solution:- (1) Hydrogen bonding could be possible only if H is bonded to more electron negative atoms N, O or F. In CH4, H is bonded to C so there is nothing like hydrogen bonding in it. Hence, it is False.
(2) Forces are related to the energy. For example if the forces are stronger then more energy is required to seperate the molecules apart from each other. So, the preferred phase of a substance at a given set of conditions is a balance between the Energy of the particles and intermolecular forces between the particles.
the correct choice is Energy.
(3) Dispersion forces are the weakest one amongst the intermolecular forces. These are present in covalent molecules and specially in non polar molecules. The only non polar molecule in the given choices is C2H6.
(4) Like the above one the non polar molecule is C3H8 and so it is the one that has only dispersion forces.
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