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[DOC File]EQUILIBRIUM QUESTIONS
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Standard Molar Entropy, S( (J K-1 mol-1) NO(g) 210.8 NO2(g) 240.1 (d) Use the data in the table below to calculate the bond energy, in kJ mol-1, of the nitrogen-oxygen bond in NO2 . Assume that the bonds in the NO2 molecule are equivalent (i.e., they have the same energy).
how to get kj mol

[DOC File]Vapor Pressure of Liquids
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R= 8.31 J/mol K or 8.31x10-3 kJ/ mol K. A graph of lnP versus 1/T gives a straight line with a slope equal to -(Hvap/R. A different expression of the Clausius-Clapeyron equation using the vapor pressure at two temperatures is. In this experiment, you will investigate the relationship between the vapor pressure of a liquid and its temperature.
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[DOC File]Chapter 19 Worksheet 1
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= 0.4300 kJ/mol-K = 4300 J/mol-K. The reaction added heat to the surroundings so the entropy went up. In problem 5a you calculated So for this reaction ( Sosys). Copy the answer here: -333.1 J/mol-K. The first law of thermodynamics says the Hsurr = - Hsys. Notice that Ssurr ≠ - Ssys for this reaction (entropy is NOT conserved!)
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HCC Learning Web
ΔH° is -125 kJ/mol and ΔS° is +253 J/K ∙ mol. This reaction is _____. A) spontaneous at all temperatures. B) spontaneous only at high temperature. C) spontaneous only at low temperature. D) nonspontaneous at all temperatures. E) unable to determine without more information.
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[DOC File]CHAPTER 19 – THERMODYNAMICS – IN CLASS PRACTICE …
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Apr 04, 2013 · -333 j/k = 126.8 j/k - 197.9 j/k - 2 s h2 s h2 = 131 j/mol.k 1987 D When crystals of barium hydroxide, Ba(OH)2.8H2O, are mixed with crystals of ammonium thiocyanate, NH4SCN, at room temperature in an open beaker, the mixture liquefies, the temperature drops dramatically, and the odor of ammonia is detected.
how to find kj mol

[DOC File]Arrhenius Equation:
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Ea = -R(slope) =( -8.314 J/mol-K)(-1.9398x104K) = 1.61 x 105 J/mol = 161 kJ/mol. Calculate the rate constant for the reaction at 100oC. k = 31.2 M-1s-1 (Notice that this is MUCH larger than k at 40oC!) Note: In these calculations, you will get significantly different answers if you round the numbers to 3 sig figs before you get the final answers.
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[DOC File]ENERGY CALCULATIONS
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Also, note that the standard heat of formation for an element in its standard state always has a value of 0 kJ/mol. Let's look at a problem in which the heat of reaction is calculated from the heats of formation. Suppose you are given the following balanced chemical equation and were asked to find the heat of reaction and determine whether the ...
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[DOCX File]clas.sa.ucsb.edu
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49.The enthalpy of fusion of ice is 6.020 kJ/mol. The heat capacity of liquid water is 75.4 J/mol∞C. What is the smallest number of ice cubes at 0∞C, each containing 1 mol of water, necessary to cool 500. g of liquid water initially at 20∞C to 0∞C?
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[DOC File]adistanciaginer.files.wordpress.com
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E( O = O) = 499 kJ/mol E(O-H) = 460 kJ/mol (Sol: - 49,5 kJ/mol) 3.- Sabiendo que la temperatura de ebullición de un líquido es la T a la que el líquido puro y el gas puro coexisten en el equilibrio a 1 atm de presión, es decir G = 0, y considerando el siguiente proceso: Bromo (l) Bromo (g)
how to get kj mol

J mol to kj mol