A pure sample of Substance S is put into an evacuated flask. The flask is then heated steadily and the temperature measured as time passes. The results are graphed below, in the middle (in green). Identical experiments are now run on Substance Y and Substance Z. Substance Y is just like S except that it has a higher heat capacity in the gaseous phase C₂(g). Substance Z is just like S except that it has a higher heat capacity in the solid phase C(s). Select the graphs below, on the left and right, that show the results you expect for these new experiments. F Substance Y Substance Z (higher C₂(g)) Substance S (higher C₂(s)) (Drag the slider to choose an image) (Drag the slider to choose an image) added heat (kt/mol) 4 dh 2 199)
A pure sample of Substance S is put into an evacuated flask. The flask is then heated steadily and the temperature measured as time passes. The results are graphed below, in the middle (in green). Identical experiments are now run on Substance Y and Substance Z. Substance Y is just like S except that it has a higher heat capacity in the gaseous phase C₂(g). Substance Z is just like S except that it has a higher heat capacity in the solid phase C(s). Select the graphs below, on the left and right, that show the results you expect for these new experiments. F Substance Y Substance Z (higher C₂(g)) Substance S (higher C₂(s)) (Drag the slider to choose an image) (Drag the slider to choose an image) added heat (kt/mol) 4 dh 2 199)
General Chemistry - Standalone book (MindTap Course List)
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Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.130QP
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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.
Question
Transcribed Image Text:acung & Tedung curve
A pure sample of Substance S is put into an evacuated flask. The flask is then heated steadily and the temperature measured as time passes. The results are
graphed below, in the middle (in green).
Identical experiments are now run on Substance Y and Substance Z. Substance Y is just like S except that it has a higher heat capacity in the gaseous phase
Cp(g). Substance Z is just like S except that it has a higher heat capacity in the solid phase Cp(s).
Select the graphs below, on the left and right, that show the results you expect for these new experiments.
db
A
Substance Y
(higher C₂(g))
Substance S
Substance Z
(higher C₂(s))
(Drag the slider to
choose an image)
(Drag the slider to
choose an image)
added heat (kl/mol)
Check
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