When, a volume of 200 cm3 of Lithium hydroxide solution of concentration 1.00 mol/dm3 and 200 cm3 of Hydrochloric acid of concentration 100 mol/dm3 were mixed together in a calorimeter the reaction was investigated to be exothermic. Based on the information given above in question one (1), calculated the enthalpy change per mol of water produced, if the heat capacity of the calorimeter was 76 J/K and the temperature rise was 5.25 K. (State any assumptions made)
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.
When, a volume of 200 cm3
of Lithium hydroxide solution of concentration 1.00 mol/dm3
and 200 cm3
of Hydrochloric acid of concentration 100 mol/dm3 were mixed together in a
calorimeter the reaction was investigated to be exothermic.
Based on the information given above in question one (1), calculated the enthalpy
change per mol of water produced, if the heat capacity of the calorimeter was 76 J/K
and the temperature rise was 5.25 K. (State any assumptions made)
Step by step
Solved in 3 steps
