Consider the engergy diagram shown below for the reaction A+B--------->C+D: Plea
ID: 890910 • Letter: C
Question
Consider the engergy diagram shown below for the reaction A+B--------->C+D:
Please answer A-E. Thank you!
Consider the energy diagram shown below for the reaction A + B rightarrow C + D : What is the value of Delta H for the reaction C + D rightarrow A + B? (Give the number and sign.) What is the value of Ea for the reaction A + B rightarrow C + D? (Give the number and sign.) Is the reaction C + D rightarrow A + B endoikermic or exothermic? What is the value of Ea for the reaction C + D rightarrow A + B? (Give the number and sign.) According to the Hammond Postulate, should the transition state for the reaction A + B rightarrow C + D resemble A and B or should it resemble C and D?Explanation / Answer
(a) dH = 4-10 = -6.0 kJ/mol ( since products are more stable than reactants. i.e products energy is less than reactants energy)
(b) Ea = 14.0 - 4.0 = 10.0 kJ/mol ( Activation energy is the energy difference between the transition state and reactants. )
(c) exothermic ( since, dH = -ve)
(d) 14.0 -10.0 = 4.0 kJ/mol ( Activation energy is the energy difference between the transition state and reactants. )
(e) It resemble C and D.