The object transferring thermal energy will _________ energy and become cooler while the object gaining thermal energy will _________ energy and become warmer. A spoon in a cup of hot coffee The ________ transfers thermal energy to the ______,
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.
The object transferring thermal energy will _________ energy and become cooler while the object gaining thermal energy will _________ energy and become warmer.
A spoon in a cup of hot coffee
- The ________ transfers thermal energy to the ______, making the _______ warmer
A cup of hot soup in a room
- The _______ transfers energy to the ______, so the ______ becomes cooler
An ice cube in your hand
- Your ________ transfers thermal energy to the ________, so it gains energy (and will start to melt). You feel cold because you are LOSING thermal energy.
How is the motion of the particles of water at 80 ⁰C different from the motion of the particles of water when it is 30 ⁰C?
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