States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
true or false
enthalpy is characteristic of each substance varies with the presence of impurities
Enthalpy is a characteristic of a thermodynamic system. It is the measure of total heat content present in the thermodynamic system at constant pressure. In the given question, a statement is given in relation to enthalpy and it is asked to find out whether the statement is true or false.
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