Draw the heating curve for ice at -30.0 °C to steam at 130.0 °C and label the phases on the lines in the heating curve. Show this in your work and upload the file in the last question.
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.
Draw the heating curve for ice at -30.0 °C to steam at 130.0 °C and label the phases on the lines in the heating curve. Show this in your work and upload the file in the last question.
In the box below, calculate the enthalpy ( in kJ)for converting 50.0 g of ice at -15.0 °C to water at 58.4 °C. (Show work below the heating curve).
The specific heat of ice = 2.09 J/g-°C
The specific heat of water = 4.184 J/g-°C
he specific heat of steam = 1.84 J/g-°C
ΔHfus for water = 6.01 kJ/mol
ΔHvap for water = 40.67 kJ/mol
Enter the numerical value in the box. Give 3 sig figs in your answer.
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