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- If there is a reaction: x OH + a Br2 + b 102 → C Br + d 104 + y H2O Under alkaline conditions, the values of a, b, c, and d are ...........A chlorine (CI) atom is adsorbed on a small patch of surface (see sketch at right). This patch is known to contain 64 possible adsorption sites. The Cl atom has enough energy to move from site to site, so it could be on any one of them. Suppose a Br atom also becomes adsorbed onto the surface. Calculate the change in entropy. One way a Cl atom might be adsorbed on a surface with 16 sites. Round your answer to 2 significant digits, and be sure it has the correct unit symbol.Is the electronic contribution to the reaction constant in the reaction of 1 nitrogen atom with 1 oxygen atom, is it zero or not? Briefly reason.
- Differentiate between Fermi level and Fermion.Please use the values in the resources listed below instead of the textbook values. Calculate the approximate value of A Sº for the reaction below. 14N₂(g) + 15N₂(g) → 2 14N15N(g) - Assume that differences in molar masses, moments of inertia, and vibrational frequencies are negligible. Arsº .6806 X J.K-¹.mol-1In a chemical reaction old bonds are broken and new ones formed. Therefore reaction enthalpies can be predicted on the basis of the tabulated old and new bond strengths or estimated by using mean bond enthalpies. Account for the difference in the standard enthalpy of combustion of methane andmethanol vapour, -890 kJ mol-1 and -688 kJ mol-1 , respectively.
- Me 03, -78 °C then Zn, CH;CO2H- The vibrational contribution to the molar heat capacity of 2 diatomic molecules can be different, what is the rea- son? - Is the electronic contribution to the reaction constant in the reaction of 1 nitrogen atom with 1 oxygen atom zero? Briefly reason.15 16 17 18 19 20 21 22 23 24 = 25 26 Hydrogen chloride and oxygen react to form water and chlorine, líke this: 4HCI(g)+0,(g) → 2H,0(g)+2C,(g) Suppose a mixture of HCI, O2, H,0 and Cl, has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left. perturbation change in composition shift in equilibrium O to the right The pressure of O, will O to the left Some HCI is removed. The pressure of H2O will O (none) O to the right The pressure of HCI will O to the left Some H,0 is added. The pressure of O, will O (none) go up. go down. not change. Submit Continue MacBook Air
- Chemistry determine enthalpy and entropy of activation.M M M s 2req pts 2req M 1 pts M 1 pts per...1 pts imit 2 1 pts k: DG...1 pts S W d 1 pts M X Consider the reaction 2NO(g) + O₂(g)2NO₂(g) Using the standard thermodynamic data in the tables linked above, calculate A Grxn for this reaction at 298.15K if the pressure of each gas is 49.95 mm Hg. kJ/mol #3 ANSWER: 20 E D Submit Answer C $ 4 000 DOO R F V % 5 Retry Entire Group 8 more group attempts remaining Use the References to access important values if needed for this question. T Cengage Learning | Cengage Technical Support G > 6 B MacBook Pro Y H & 7 N U ▶II J * 8 M I ( 9 K. O L H O L P > Previous t command option Email Instructor Save and Exit { [ + 11 ? Next 1 ] C delete retOENTROPY AND FREE ENERGY Calculating entropy change using the Boltzmann hypothesis A chlorine (CI) and bromine (Br) atom are adsorbed on a small patch of surface (see sketch at right). This patch is known to contain 81 possible adsorption sites. The Cl and bromine (Br) atoms have enough energy to move from site to site, so they could be on any two of them. Suppose the Br atom desorbs from the surface and drifts away. Calculate the change in entropy. Round your answer to 2 significant digits, and be sure it has the correct unit symbol. 0 ☐ x10 ロ・ロ H olo 5 0/5 Christina 'L... One way a Cl and Br atom might be adsorbed on a surface with 16 sites. ? ollo Ar