CHEMISTRY [2 Mark Question Answer]

The gas particles have very weak attractive force between them, and move randomly ultimately exert pressure in all direction. Their molecules are bouncing all around the container because they are so small, then gravity has very little effect on them

The relation between pressure and volume at constant temperature is best described As Boyle’s Law, which says that at constant temperature, the pressure of a fixed amount of gas is inversely proportional to its volume. Or in other words we can say that the product of pressure and volume is constant, pV = constant

Kelvin is the SI base unit of temperature. It is given the symbol . Since temperature measures the energy of atoms and molecules, a true temperature scale must be a positive scale since atoms cannot have a negative energy

Since volumes of gases change with temperature and pressure, a standard value of temperature and pressuure is chosen to which gas volumes are referred. Hence volumes of gases are converted into S.T.P. conditions and then compared easily