Solved the first two problems since MCQ type, as per Chegg guidelines ,post one problem per posted question
1) The correct answer is Option d
The molecular bonds will form dipole-dipole interactions, london dispersion and hydrogen bonds
2) The correct answer is Option a
The total amount of solute is irrespective of dilution, since the number of moles of solute will be fixed which is
number of moles of HCl = volume of solution (in L) * molarity = 50/1000 * 0.1 = 0.005 moles
Part 1- Multiple Choice (30 points) solids and/or hydrogen bonds forces, London dispersion forces, a. Metallic...
All of the following statements about the kinetic molecular theory of gases are true EXCEPT: A. The size of the gas molecules is negligible compared to the total volume of the gas B. The average kinetic energy of the molecules of a gas is proportional to the temperature of the gas in kelvins. C. The gas molecules collide with each other and with the surfaces around them. D. Strong attractive forces hold the gas molecules together. E. none of the...
Problem 4: Read Appendix 2 below (Sec. 1.4.1 of Kasap) and then solve. A metallic back contact is applied to the CdTe solar cell of Problem 1 using a set up similar to that described in Figure 1.74 (b) on the next page. To form the metallic back contact, two evaporation sources are used, Cu and Au. An initial 3 nm layer of Cu is deposited first and then 30 nm of Au is deposited. After these depositions, the sample...
All of the following statements about the kinetic molecular theory of gases are true EXCEPT: 1. The size of the gas molecules is negligible compared to the total volume of the gas. B. The average kinetic energy of the molecules of a gas is proportional to the temperature of the gas in kelvins. C. The gas molecules collide with each other and with the surfaces around them. D. Strong attractive forces hold the gas molecules together. E none of the...
1. Definitions. Fill in the blank with the LETTER of the most appropriate term from the following: A. Charles' Law B. neutralization C. heat of fusion D. Dalton's Law E. heat of vaporization F. heat capacity (specific heat) G. evaporation H. condensation I. melting J. Boyle's Law K. ideal gas law L. pressure M.PH N. Arrhenius acid S. Arrhenius base T. kinetic molecular theory states that pressure and volume are inversely proportional states that volume and absolute temperature are directly...
Two Part Thermodynamics Multiple Choice Question Q1a. For an ideal gas in an isothermal system the change in .................. is zero A) Heat B) Work C) Entropy D) Internal Energy Q1b. In a piston with insulated external walls there is a movable (insulated)barrier separating the two halves of the piston. The gas in the left chamber is heated. Which of the following is not correct? A) The temperature in the left chamber will increase B) The pressure in both chambers...
1,4? Part I: Choose five of these questions. (12 points each) 1. Here is the van der Waals Equation for one mole of gas P Given this equation, how does the infinitesimal change in pressure, or as specific as possible. (In other words, evaluate the derivatives.) with d V and dT? B e-NV, where is the sity her of molecules and V is the fshe wall perpendicular to the 2. A sample of gas molecules of density N e e...
3. Avogadro's law states that a. 1 liter of any gas contains 6.02 x 1023 gas molecules. b. the volume of a gas is directly proportional to its temperature. c. the gas constant equals 0.0821 L atm/(mol K) for all ideal gases. d. the volume of a gas must always be a constant. e. equal volumes of all gases at the same pressure and temperature contain an equal number of moles.
Pchem help! Multiple Choice Circle the correct answer. (1 pt each) 1. Two gases at the same temperature must have the same: a pressure b. volume c number of molecules d. kinetic energy per molecule e. more than one of these 2. A match is placed in an oxygen-filled cylinder that has a fixed volume. As the match burns, the chamber heats rapidly. What kind of change is demonstrated in this process? a. an isenthalpic change b. an adiabatic change...
What is/are a characteristic/s of an ideal solution? Multiple answers: You can select more than one option A) They follow the ideal gas law B) There is no heat exchanged when mixed C) Only solutions with weak intermolecular forces are ideal solutions D) Only solutions with strong intermolecular forces are ideal solutions E) Intermolecular force strengths between solvent and solute particles are similar
Which of the following concerning a barometer or manometer is/are true? Pressure is directly proportional to the height of the liquid used in the device. Pressure is directly proportional to the density of the liquid used in the device. Pressure is independent of the acceleration of gravity. A.1 only B.2 only C.3 only D.1 and 2 E.1, 2, and 3 Which statement is inconsistent with the kinetic theory of an ideal gas? A.Most of the volume occupied by a gas...