Water has a higher specific heat than mercury. All of the following statements are consistent EXCEPT? It takes more heat to warm one pound of water by 15°C than to warm the same mass of mercury by A) 15°C. More heat will be given off when one pound of water is cooled by 15°C than when the same mass of (B mercury is cooled by 15°C. One pound of water cooled from 80°C to 20°C will give off the same amount of heat as one pound of mercury cooled between the same temperatures. If one pound of mercury and one pound of water initially at the same temperature are each exposed to the same amount of heat, the temperature of the mercury will rise more. E) All of these are true
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.
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