An open vessel containing liquid water stands in a sealed room measuring 5.0m wide x 4.0m long x 3m high. The temperature of the room is 320K and, over time, some of the liquid water evaporates. Eventually, the liquid water level in the vessel stops changing. a) How many grams of water will be in the humid air within the sealed room?
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.
An open vessel containing liquid water stands in a sealed room measuring 5.0m wide x 4.0m long x 3m high. The temperature of the room is 320K and, over time, some of the liquid water evaporates. Eventually, the liquid water level in the vessel stops changing.
a) How many grams of water will be in the humid air within the sealed room?
b)A contact lens cleaning system on the market uses an aqueous hydrogen peroxide solution to disinfect the contact lenses. In a few hours, the hydrogen peroxide decomposes to liquid water and oxygen gas in a catalyzed reaction. The vessel in which the reaction occurs has a hole in the top. Use chemical potential to explain how the equilibrium concentration of hydrogen peroxide would be affected if the hole was not present.
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