Part A Ozone, Os, is destroyed when CIO levels are high. CIO is likely formed from the decomposition of chlorofluorocarbons (CFCS) in sunlight. Standard enthalpies of formation for selected substances are given in the table below. Calculate the standard enthalpy change of the reaction CIO(9) + O3(9)-CIO:(9) + 02(9) Ar H° (kJ mol Substance Express your answer in kJ mol- to four significant figures. • View Available Hint(s) CIO(9) 101.0 CIO:(9) O(g) 0:(9) 102.0 Templates Symbols undo redo reset keyboard shortcuts help 247.5 Oz(9) A.H = kJ mol-1 Os(9) 142.3 Calculate the standard enthalpy change of the reaction CIO:(9) + 0(9)-CIO(9) + Oz(9) Express your answer in kJ mol to four significant figures. • View Available Hint(s) Templates Symbols undo redo reset keyboard shortcuts help A, H° = kJ mol-1 Submit
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
Please answer both questions as they are calculated together but just a heads up they are different questions. Thank you for helping me
![Part A
Ozone, O3 , is destroyed when CiO levels are high. ClO is likely formed from the decomposition of
chlorofluorocarbons (CFCS) in sunlight.
Standard enthalpies of formation for selected substances are given in the table below.
Calculate the standard enthalpy change of the reaction
Ci0(9) + O3(9)→CIO2 (9) + O2 (9)
Substance
Express your answer in kJ mol-1 to four significant figures.
(kJ mol¬1)
• View Available Hint(s)
ClO(g)
101.0
C1O2(9)
102.0
O(g)
Templates Symbols undo rådo reset keyboard shortcuts help
247.5
O2(9)
A:H° =
kJ mol-1
O3 (9)
142.3
Calculate the standard enthalpy change of the reaction
CIO2 (9) + 0(9)→CIO(g) + O2(g)
Express your answer in kJ mo]¯ to four significant figures.
• View Available Hint(s)
Templates Symbols undo redo reset keyboard shortcuts help
A,H° =
kJ mol-1
Submit](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F71268a47-9af0-4788-866d-3ca6c2be42f9%2Fad73a0f6-322a-46ac-9247-6e7800b16e5b%2Fa8gtkdp_processed.png&w=3840&q=75)
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