If the heat of reaction, that is the enthalpy change ΔH, for a certain process, is +32 kJ, that process Question 3Select one:a.occurs rapidlyb.is exothermicc.is endothermicd.cannot occure.requires a catalyst

The enthalpy of a reaction is +270 kJ/mol. What can you determine about the reaction?A.It is exothermic.B.It is nonspontaneous.C.It is endothermic.D.It is spontaneous.

ΔH is _____ for an exothermic reaction.

Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 258.kJ during a certain chemical reaction, which is carried out at a constant pressure. Furthermore, by carefully monitoring the volume change it is determined that −51.kJ of work is done on the mixture during the reaction.Calculate the change in energy of the gas mixture during the reaction. Round your answer to 3 significant digits. kJIs the reaction exothermic or endothermic?

For the following reaction mechanism use the diagram below to answer each question (5 marks) 16. The overall reaction in the forward direction is endothermic OR exothermic. (circle one) 17. The 2nd step of the reaction mechanism in the forward direction is endothermic OR exothermic. (circle one) 18. _________________ is the reaction intermediate. 19. The ΔH for the overall reaction in the forward direction is ________ kJ. (state the value) 20. The slowest step in the forward direction is step 1 OR step 2. (circle one) Ep (kJ) Reaction Progress

Match the correct term on the right with an example value on the left (5 marks) _____ 11. 456 kJ a. specific heat capacity of a substance _____ 12. 56 mol/L s b. total enthalpy (ΔH) _____ 13. 0.355 J/g0C c. rate constant _____ 14. 2.34 kJ/mol d. molar enthalpy (ΔHx) _____ 15. 18 L3/mol3s e. rate of reaction