Calculate the enthalpy of vaporization
Calculate the enthalpy of vaporization. For water, at its boiling point, the entropy of vaporization is118 J/(K mol). Assume a pressure of 1 atm.
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Let X be the time (in minutes) between two successive purchases at a commercial website. We believe that X has an exponential distribution with parameter alpha = 0.2 purchases per minute.
Analyze the average kinetic and potential energies,(Ekinetic) and (Epotential), for the ground state (n=0) of the harmonic oscillator by carrying out the appropriate integrations.
Identify the expected change in temperature for 3.5 g of NH4NO3dissolved in the 75.0 mL of H2O. Assume that the calorimeter absorbs no heat, ie: C cal=0
A 0.4512g of the primary standard Na2CO3 needed 36.44mL of HCl solution to reach the endpoint in the reaction. How can obtain the molarity of HCl?
According to manufacturer of M&M candy, the color distribution for plain chocolate M&Ms is 13% brown, 13% red, 14% yellow, 24% blue, 20% orange, and 16% green. A Stat 200 student found a bag of 350 M&M's at Costco.
Discuss what volume will 5.4 moles of sulfur hexafluoride (SF6) gas occupy if the temperature and pressure of the gas are 128°C and 9.4 atm?
Determine the activation energy for this reaction when heated to a high temperature, cyclo-propane is converted to propane; the rate constants for this reaction are 1.10 x 10-4 s-1 at 470oC abd 1.02 x 10-3 s-1 at510oC.
Determine ΔU for the process. Assume the gas behaves as a van der Waals gas under these conditions when a sample of 2.0 mol of N2 (Cv, m= 1.5R) is initially at 100 bar and 301.15K. The sample is then compressed to 500 bar while it is cooled
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When children are able to determine that the same amount of liquid is in two different sized containers, they have mastered
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The range of tasks that are too difficult for the child to master alone but that can be learned with the guidance and assistance of adults
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