Use the following data to estimate the value of ASrxn for the represented process? HINT: watch sign and units (kJ given but answers are in Joules) Slope = -ASrxn- a b C 75 J/K 0.3 J/K AG (kJ) -300 J/K 35 30 25 20 15 10 5 0 200 250 Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. Temperature (K) ● 300 ● 350 400
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 SHOW YOUR WORK (THIS IS NOT A GRADED ASSIGNMENT)
Change of Entropy ∆Srxn :-
the change in the state of disorder of a thermodynamic system that is associated with the conversion of heat or enthalpy into work .
Relation between ∆G and ∆S
∆Grxn = ∆Hrxn - T ∆Srxn
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