Application of chemical equilibrium
A flask is charged with 2.00 atm of nitrogen dioxide and 1.00 atm of dinitrogen tetroxide at 25 oC and allowed to reach equilibrium. When equilibrium is established, the partial pressure of NO2 has decreased by 1.24 atm. (a) What are the partial pressures of NO2 and N204 at equilibrium? (b) Calculate Kp and Kc for following reaction at 25 2 NO2(g) N204(g)
Consider the molecule azulene and a. Setup the secular determinant for azulene within the Hückel approximation and using the out-of-plane C2p orbitals as basis set. b. Estimate π-electron binding energy within the Hückel approximation. c. Approximate the delocalization energy.
what is mass of 5 mole of ammonia?calculate the number of NH3 molecules, nitrogen atoms and hydrogen atoms in it
Calculate the heat of combustion of ethane if heat of formation is
33kJmol'
5. The heat of combustion of benzene, CoHscn and cyclohexane, CsHiżın are-
-3268 and - 3920kJmoirespectively. Calculate:
(a) the heat of hydrogenation of benzene to cyclohexane.
(5) the heat required to hydrogenate a double bond in benzene.
Calculate the lattice energy of calcium chloride from the following
Standard heat of formation of Cacho=-794kImor!
Heat of sublimation of Caly) = +193kīmolt
Dissociation energy of Clz9) = +242kimol
Ionization energy of Cats to Cat=1725ximo!!
Electron affinity of Cle=-36411mot!
Calculate the lattics energy of rubidium fluoride from the following data
Heat of sublimation of Rbo=+36kmol!
Standard heat of formation of Rbra = -54211 mot
Dissociation energy of Fzca = +1551 tot
Ionization energy of Rb3 = + 4021dmor!
Electron affinity of Fia=-346 mol
Calculate ΔH at 400oC for the reaction
SO2(g) + 1/2O2(g)⟶SO3(g)
given that the standard heat formation at 25oC of SO2 and SO3 are -70.9 and -94.4 (in kcal mol-1) repectively and that the heat capacities in JK-1mol-1 are:
SO2: Cp = 10.39 + 2.54 x 10-3T -1.42 x 10-5T2
SO3: Cp = 13.70 + 6.42 x 10-3T -3.12 x 10-5T2
O2: Cp = 7.16 + 1.00 x 10-3T -0.40 x 10-5T2
how many phases and components are present in a heated vessel containing blue copper sulphate crystal
Why molecular oribital theory changes in oxygen case