Indicate whether the following will increase, decrease, or have no effect on the calculated atomic weight of the unknown metal: a. 5.0 grams of hot water were transferred to the calorimeter together with the metal. b. There was heat loss by radiation from the calorimeter to the surroundings. c. There was considerable delay in transferring the metal to the water in the calorimeter. d. The metal was transferred to the calorimeter before temperature of the metal and boiling water reached equilibrium
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.
Indicate whether the following will increase, decrease, or have no effect on the calculated
atomic weight of the unknown metal:
a. 5.0 grams of hot water were transferred to the calorimeter together with the metal.
b. There was heat loss by radiation from the calorimeter to the surroundings.
c. There was considerable delay in transferring the metal to the water in the calorimeter.
d. The metal was transferred to the calorimeter before temperature of the metal and boiling
water reached equilibrium
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