You were walking along España Blvd. and you randomly picked up a piece of strange shiny rock that weighs 49.9 g. You immediately ran to the ChE lab in Roque Ruaño Bldg. and asked the lab supervisor if you could so some experiments on this strange object. You found that it requires 790 J to increase its temperature from 25 °C to 74.8 °C. What is its specific heat capacity in J/g°C? Round off your answers to the nearest thousandth's digit.
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.
You were walking along España Blvd. and you randomly picked up a piece of strange shiny rock that weighs 49.9 g. You immediately ran to the ChE lab in Roque Ruaño Bldg. and asked the lab supervisor if you could so some experiments on this strange object. You found that it requires 790 J to increase its temperature from 25 °C to 74.8 °C. What is its specific heat capacity in J/g°C? Round off your answers to the nearest thousandth's digit.
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