The gas phase reaction Cl(g) + HBr(g) → HCl(g) + Br(g) has an overall enthalpy change of -66 kJ. The activation energy for the reaction is 7 kJ. What is the activation energy for the reverse reaction?
Can someone explain to me why this would -73?

The gas phase reaction Cl(g) + HBr(g) → HCl(g) + Br(g) has an overall enthalpy change...
The forward and reverse rate constants for the gas-phase reaction C2H5(g) + HBr(g) → C2H6(g) + Br(g) have been measured and used to compute thermodynamic parameters for C2H5. The reaction is bimolecular in both directions with Arrhenius parameters A = 1.0 x 10' dm' mol's, Ex = 4.2 kJ moll for the forward reaction and A' = 1.4 x 10" dm' mol's', E = 53.3 kJ mol-' for the reverse reaction. Compute A Hº, A, S, and A Gºat 298...
For the gas phase decomposition of bromoethane, CH3CH,Br—+C2H4 + HBr the rate constant has been determined at several temperatures. When In k in sis plotted against the reciprocal of the Kelvin temperature, the resulting linear plot has a slope of -2.63x10+ K and a y-intercept of 29.6. The activation energy for the gas phase decomposition of bromoethane is kJ/mol.
Question 24 of 30 > A certain reaction has an enthalpy of AH = 34 kJ and an activation energy of Ea = 66 kJ. What is the activation energy of the reverse reaction? Ea(reverse) = kJ Question 23 of 30 Label the energy diagram for a two-step reaction. A R. + HX Energy RX + H RH + X Reaction coordinate Answer Bank non-limiting transition state rate-limiting transition state products intermediates activation energy starting materials enthalpy change
A Reaction is given: ½Br2(l) --> Br(g) Ho = 112kJ/mol The bond enthalpy of Br-Br is 193 kJ/mol A. Formulate the vaporization process of 1 mol bromine Br2(l). B. Calculate the enthalpy of the vaporization process bromine. Show calculations C. Calculate the energy invested \ emitted by the evaporation of 3.2 gr of bromine. Show calculations. (Explain how you determined whether the energy is invested or emitted in this process). D.A Reaction is given: ½H2(g) + ½Br2(l) --> HBr(g) Ho...
A chemist measures the enthalpy change AH during the following reaction: 3 CH , Br(g) + NH3(9)– (CH3),N(I) + 3 HBr(g) AH=73. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction AH 9CH, Br(s) + 3NH, 6) Х 5 ? 3(CH),N(1) + 9H Br(e) (CH),N(1) + 3H Br(e) 3CH, Br(e) + NH,G) 6CH, Br(g) + 2NH, (8) 2(CH), N() + 6H Br(e)
The enthalpy change for the following reaction is 81.1 kJ. Using bond energies, estimate the H-Cl bond energy in HCl(g). 2HCl(g) + Br2(g)2HBr(g) + Cl2(g)
The activation energy for the reaction NO2(g)+CO(g)⟶NO(g)+CO2(g) is Ea = 175 kJ/mol and the change in enthalpy for the reaction is ΔH = -375 kJ/mol . What is the activation energy for the reverse reaction?
The activation energy for the reaction NO2(g)+CO(g)⟶NO(g)+CO2(g) is Ea = 200 kJ/mol and the change in enthalpy for the reaction is ΔH = -200 kJ/mol . What is the activation energy for the reverse reaction?
The activation energy for the reaction NO2(g)+CO(g)⟶NO(g)+CO2(g) is Ea = 150 kJ/mol and the change in enthalpy for the reaction is ΔH = -375 kJ/mol . What is the activation energy for the reverse reaction?
A chemist measures the enthalpy change AH during the following reaction: 3 CH,Br(g) + NH3(9) (CH3),N(1) + 3 HBr(9) AH=73. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ/mol, reaction ΔΗ Ok CH,Br(g) + 3NH,(8) ► ? (ch,),N(!) + 2 H Br() 2(CH3),N(1) + 6HBr(g) — 6CH,Br(g) + 2NH, () x Ś ? A ПkJ (CHR),N(1) + 3H Br(g) — 3CH,Br(g) + NH3(8) OkJ