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| 1. |
Limitations of Chemical equations ?? |
| Answer» \xa0A chemical equation has its own limitations. They do not provide information about:\xa0\tThe physical state of reactants and products Hence, the symbols ‘s’ for solid, ‘l’ for liquid, ‘g’ for gas and ‘vap’ for vapour are added.\xa0\tConditions such as temperature, pressure and catalyst affecting the reaction\xa0\tConcentration of reactants and products\xa0Hence, in some cases, for dilute ‘dil.’ and for concentrated ‘conc.’ are added.\xa0\tThe nature of the chemical reaction; whether it is reversible or irreversible reaction.\xa0\tSpeed of the reaction\xa0\tHeat changes accompanying the reaction; whether heat is given out or absorbed\xa0\tTime taken for completion of the reaction A reaction may or may not be complete, and the equation does not reveal it. | |