When NaHCO3 is heated above 270C. It decomposes to form sodium carbonate, water, and carbon dioxide. Write a balanced equation for the reaction and calculate the mass of h20 produced from the decomposition of 45.0g of NaHCO3
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.
Here NaHCO3 decomposes to form sodium carbonate(Na2CO3), water (H2O) and Carbon dioxide(CO2)
The reaction equation is,
NaHCO3----> Na2CO3 + H2O + CO2
For balancing question we need to equal the number of atoms for each elements in the reactants and products.
Hence, the balanced equation of this reaction is,
2 NaHCO3 ---->Na2CO3 + H2O + CO2
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
