Consider the difference between boiling water and boiling oil. Water boils at 100°C, while oil requires a much highertemperature. This difference is due to the intermolecular forces between the molecules. Water molecules are heldtogether by hydrogen bonds, which are stronger than the Van der Waals forces in oil. As a result, more energy is neededto break the bonds in water, leading to its lower boiling point. Which statement best explains the effect of intermolecularforces on boiling points?A) Stronger intermolecular forces result in higher boiling points.B) All liquids boil at the same temperature regardless of intermolecular forces.C) Weaker intermolecular forces result in higher boiling points.D) Intermolecular forces have no effect on boiling points.

There are four types of intermolecular forces.Ionic forces: This is the interaction between charged…

Answered: Consider the difference between boiling…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Define each type of intermolecular force. Give an example of each and describe what characteristic that example has that results in each type of intermolecular force.
Describe each type of intermolecular interaction: dispersion forces, dipole-dipole, ion-dipole and hydrogen bonding. Which is the strongest? Which is the weakest? Draw an example of each with your description.
Why does NaI have a higher melting point than I₂? Explain in terms of intermolecular forces. Select the single best answer. Because NaI is a solid, and I, is a liquid. O Because NaI can form hydrogen bonds, and I cannot. O Because NaI is soluble in water, and I2₂ is not. Because NaI is an ionic compound, and the ion-ion attractions are much stronger than the dispersion forces between the I molecules. O
Air conditioners dry the air while they cool the air. Suppose an air conditioner is used to cool a room that is 7.16 mx 10.60 m x 2.17 m when the outside temperature is 37 °C. At this temperature, the vapor pressure of water is 47.1 torr. The partial pressure of water in the air is 85.5% of the vapor pressure of water. How much water, in grams, is removed from the air each time the air from the room is cycled through the air conditioner? mass of H₂O: g A certain substance has a heat of vaporization of 33.26 kJ/mol. At what Kelvin temperature will the vapor pressure be 4.00 times higher than it was at 307 K? K
Why does sea water boil at a higher temperature than fresh water does?
Which of these statements about hydrogen bonds is not true? Individual hydrogen bonds in liquid water exist for less than a second. Hydrogen bonds do not account for the anomalously high boiling point of water. O In liquid water, the average water molecule forms hydrogen bonds with three to four other water molecules. Individual hydrogen bonds are much weaker than covalent bonds. The strength of a hydrogen bond depends on the linearity of the three atoms involved in the bond.
- Suppose a small sample of pure X is held at -236.°C and 2.0 atm. What will be the state of the sample (solid, liquid, or gas)? - Suppose the temperature is held constant at -236.°C but the pressure is decreased by 1.2 atm. What will happen to the sample (nothing, it will melt, it will freeze, it will boil, it will condense, it will sublime, or it will deposit)? - Suppose, on the other hand, the pressure is held constant at 2.0 atm but the temperature is increased by 137°C. What will happen to the sample (nothing, it will melt, it will freeze, it will boil, it will condense, it will sublime, or it will deposit)? All these are part of one question.
There are three sets of sketches below, showing the same pure molecular compound (water, molecular formula H₂O) at three different temperatures. The sketches are drawn as if a sample of water were under a microscope so powerful that individual atoms could be seen. Only one sketch in each set is correct. Use the slider to choose the correct sketch in each set. You may need the following information: melting point of H₂O: 0.0 °C boiling point of H₂O: 100.0 °C A (Choose one) (Choose one) 188. °C B 5 35. °C 4 5 (Choose one) -25. °℃
Draw the phase diagram of carbon dioxide and explain the meaning of three regions and lines.
How do intermolecular forces determine the physical properties of a molecule?
Determine the chemical formulas for the two compounds. ОН A A: В: Based on their structures, which compound will have the higher boiling point?
Which should have a higher enthalpy of vaporization, CF4 or CBr4? Explain the role of intermolecular forces in your decision.

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