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Which of the following describes the qualitative behavior of the Maxwell-Boltzmann distribution as temperature increases? You will have to press the "reset" button on the applet before you can change the temperature using the thermometer on the right side. The histogram used in this problem is obviously only an approximation of the true distribution of velocities in a gas. In reality, the molecules span a continuous range of velocities. For a given temperature, the majority of the molecules have a speed near the average speed, with a few molecules traveling very fast or very slow. To good approximation, the speeds of molecules in a gas follow what is known as the Maxwell-Boltzmann distribution. This applet allows you to see the curves for the Maxwell-Boltzmann distribution at many different temperatures. It also lets you move a small interval around on the histogram to highlight all of the molecules within the speed range of that part of the histogram. Which of the following describes the qualitative behavior of the Maxwell-Boltzmann distribution as temperature increases? You will have to press the "reset" button on the applet before you can change the temperature using the thermometer on the right side.
A.The peak moves to the right, while the distribution becomes more spread out.
B.The peak moves to the right, while the distribution becomes less spread out.
C.The peak moves to the left, while the distribution becomes more spread out.
D.The peak moves to the left, while the distribution becomes less spread out.
What mass of ammonium chloride, NH4Cl, (Ka = 5.6 x 10^-10) must be added to exactly 500mL of 0.10M NH3 solution to give a solution with a pH of 9.00
Which of the following statements is/are correct. a) Water is an example of non-polar solvent. b) Any solution always conatins an electrolyte c) NONE d) A solute is always molecules dissolved in water and cannot be ions.
Consider 2 moles of a onoatomic ideal gas (Cv,m=3R/2) at an initial pressure of 2.0 atm and an initial temperature of 298 K. Assume it expands adiabatically and reversibly until its volume doubles. calculate the expansion ork, the final tmperature..
Identify all the possible macrostate and the corresponding microstates in a system consisting of two communicating containers and four atoms
a mass is trapped on the x-axis. its potential energy is given by u-2x3 -3x2 12x. where x is i meters and u is in
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We electrolyze a solution containing M2O7(3-) for 43.30 hr using a current of 2.685 amp to isolate M(s), which has an atomic weight of 215.22. How many grams of M(s) will be produced if we operate the system at 100% efficiency
1why is an acetyl group added to aniline making acetanilide and then removed to regenerate the amine group in
Gold can be hammered into extremely thin sheets called gold leaf. A 210. mg piece of gold (density = 19.32 g/cm3) is hammered into a sheet measuring 4.2 1.0 ft. What is the average thickness of the sheet in meters? GIVEN: 2.54 cm = 1 inch
an ice cube tray holds 515 g water. if the water initially has a temperature of 21degc how many kilojoules of heat must
At 25 c the ion product of water, Kw is 1.9 x 10^-14. What is the concentration of hydroxide ions in a solution where the concentration of hydrogen is found to be 5.0 x 10^-15 mol dm^-3.
Calculate the solubility (in M units) of ammonia gas in water at 298 K and a partial pressure of 7.50bar . The Henry's law constant for ammonia gas at 298 K is 58.0 M atm and 1 bar = 0.9869 atm.
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