Quiz 1 Notes

The measure of the resistance to flow of a liquid isa. London forces. b. van der Waals forces. c. viscosity. d. vapor pressure.e. surface tension.

2 HAMB Two water molecules are separated by 2.72 Å in air. Use the equation V = to calculate the strength of the dipole-dipole interaction. The dipole moment of water is 1.82 D. 4περη 4.0 -3.3e-17 kJ•mol-1

I have an exam im studying for: can color coded make me an example of clausisus clapeyron examples on solving for T1, T2, P1, P2 and delta H vap. I dont understand the math part im really bad. Plz help much appreciated.

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I An adventurous archaeologist cros- ses between two rock cliffs by slowly going hand over hand along a rope stretched between the cliffs. He stops to rest at the middle of the rope (Figure 5.43). The rope will break if the tension in it exceeds 2.50 × 104 N. Our hero's mass is 90.0 kg. (a) If the angle 0 is 10.0⁰, find the tension in the rope. Start with a free-body diagram of the archaeologist. (b) What is the smallest value the angle 0 can have if the rope is not to break? E

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Fluorine (f2) has melting point of 53.53k and a boiling point of 85.03k draw whar fluorine would look like on the molecular leavel at 40k and 70k and 100k be sure to indicate and label what types of interactions and / or bonds are present.

Would you agree that the hydrogen bonds (e.g) the attraction between two water molecules) might be modelled in MM as weak covalent bonds, as strong van der Waals or dispersion forces, or as electrostatic attractions? is any one of these approaches to be preffered in principle?

Using Figure Q3, draw the heating curve for water -20°C to 120°C at 0.1 atm. The diagram must be fully labelled. 3. Consider a specimen of ice that is at –15 °C and atmospheric pressure. Using Figure Q3, the phase diagram for H2O, (a) determine the pressure to which the specimen must be raised or lowered to cause it (i) to melt, and (ii) to sublime (b) determine the temperature to which the specimen must be raised or lowered to cause it (i) (ii) vaporise 4. to melt,

A concept map for four types of intermolecular forces and a certain type of bond is shown. No Are ions Yes present? No Are molecules Are polar No with pemanent dipoles present? molecules present? Yes Yes Is H atom bonded to F, O. or N atom? Yes No C. Compare the relative strength of the two forces C and D. Explain how you determined this comparison by identifying the forces. 回 |囚 Source BIUSX x T | E E 99 = Styles - ? Format

Which situation below exhibits the greatest repulsive forces A) a +1 particle and a -3 particle separated by 1 inch B) a +1 particle and a +3 particle separated by 2.54 cm C) a +3 particle and a +1 particle separated by 254 mm D) a +3 particle and a +2 particle separated by 0.08333 inches