Photosynthesis is one of the most important metabolic processes to take place on the Earth. It occurs in plants and some algae and involve harnessing light energy from the sun to convert into usable energy for the plant itseif, us, and other +0. a) Balance the equation [1] b) -> C6H12 organisms. The equation for photosynthesis is: H2O + CO2 (1) 2(g) 6(s) 2(g) Determine the enthalpy of photosynthesis using Hess law. Is the reaction endo or exothermic? [4] H 2(g) 22) T 2004 OAH=-285.8kJ C +0 - CO (s) 2(g) +H ,AH = -393.5kJ C 2(g) (s) 2(g) + +10 20 Ch 6 HO 12 6(s) AH= c) Draw a potential energy diagram for photosnthesis Make sures tol label the x and y axis, write down your reactants and products. include the enthalpy value in the correct position [2]
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.
![Photosynthesis is one of the most important metabolic processes to take place on the Earth. It occurs in plants and some
algae and involve harnessing light energy from the sun to convert into usable energy for the plant itseif, us, and other
organisms. The equation for photosynthesis is: H2O(1)
O+CO
O +0 a) Balance the equation [1] b)
6(s) 2(g)
Determine the enthalpy of photosynthesis using Hess law. Is the reaction endo or exothermic?
2(g)
12
[4] H
+
2(g)
2 2(g)
HOAH
2 (1)
-285.8kJ C +0
CO
(s) 2(g)
2(g) 'AH = -393.5kJ C
+H +
(s) 2(g) 2 2(s)
C6H12O6(1)"
,AH =
c) Draw a potential energy diagram for photosnthesis Make sures tol label the x and y axis, write down your reactants and
products. include the enthalpy value in the correct position [2]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0bef92d6-4e35-41eb-8bf2-983ab9276029%2F3d190d87-1422-4025-a138-45492c27f3cb%2Fehk53e7_processed.jpeg&w=3840&q=75)
Trending now
This is a popular solution!
Step by step
Solved in 6 steps with 4 images
