1. Answer is option (A) CH3COH is polar molecule + Hydrogen bonding exists. CH3C
ID: 700149 • Letter: 1
Question
1.
Answer is option (A)
CH3COH is polar molecule + Hydrogen bonding exists.
CH3Cl is polar molecule
N2 having lone pairs on nitrogen atoms
He is a inert gas
2.
Answer is option (C)
Vapor pressure is the amount of gas in equilibrium with the liquid and solid phases. The higher the vapor pressure, the more gas in equilibrium, and thus the easier it is for the substance to vaporize (turn to gas), and vice versa.
Intermolecular forces are the attractive interactions between molecules. For something to vaporize, you have to get enough energy together to break these interactions. As a result, you'll need more energy to break apart stronger intermolecular forces.
Since higher vapor pressures corresponds to more gas in equilibrium, the intermolecular forces are therefore primarily weaker for higher vapor pressures.
3.
Answer is option (C)
4.
Answer is option (B)
Negative entropy indicates decrease in entropy. Which implies more ordered arrangement in the product after the reaction.
Increasing order of entropy is as follows:
Solid < Liquid < Gas
Solids have lowest entopy.
Explanation / Answer
arrange the following substances in order of decreasing intermolecular forces ch3 oh, (1) (40 points) Multiple-Choice Questions 1) Arrange the following substances in order of decreasing intermolecular forces: CH,OH, He, CH CI, and N2 Answer: ( C) a high vapor pressure 2) Which of the following characteristics indicates the presence of weak intermolecular forces in a liq B) a high critical temperature E) a high density A) a high viscosity D) a high boiling point Answer: ( 3) The phase diagram of sulfur is shown below. Monoclinic and rhombic are two allotropes of sulfur. W hich statement concerning the phase diagram of sulfur is FALSE 154C 1288 atm Liquid Rhombic Vapor A) Three triple points are in the diagram B) The critical point is not shown in this diagram C) Under atmospheric conditions, the monoclinic allotrope is more stable than the rhombic allotrope. D) Under atmospheric conditions, both allotropes do not undergo sublimation. E) At 80°C and 1 atm pressure, the stable allotrope is rhombic sulfur. Answer: 4) Which of the following is a process with a negative AS? C) CaCO3(s) Ca0(s) + CO2(g) A) 120(/) H2(g) D) dissolving sugar in water B) 2Mg(s) + Odg) 2Mg0(s) E) CO2(s)-CO2(g) Answer: If the t is increased, will decrease the nreseure will de ression for the following reaction? e (s)+3HO (g no changs (I) Multiple-Choice Questions I)'The figure below represents the sponta produce gaseous H20 toP/ onsist afRelated Questions
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