ICSE Class 8 Answered
What are the limitations of chemical equation?
Asked by Topperlearning User | 01 Nov, 2017, 09:20: AM
Expert Answer
A chemical equation has its own limitations. They do not provide information about:
- The physical state of reactants and products Hence, the symbols ‘s’ for solid, ‘l’ for liquid, ‘g’ for gas and ‘vap’ for vapour are added.
- Conditions such as temperature, pressure and catalyst affecting the reaction
- Concentration of reactants and products Hence, in some cases, for dilute ‘dil.’ and for concentrated ‘conc.’ are added.
- The nature of the chemical reaction; whether it is reversible or irreversible reaction.
- Speed of the reaction
- Heat changes accompanying the reaction; whether heat is given out or absorbed
- Time taken for completion of the reaction A reaction may or may not be complete, and the equation does not reveal it.
Answered by | 01 Nov, 2017, 11:20: AM
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