Explain the following terms:
$(i)$ Isotherm
$(ii)$ Isochore
$(iii)$ Isobar

(N/A) $(i)$ Isotherm: $A$ graph plotted between pressure and volume at a constant temperature is known as an isotherm.
Example: Boyle's Law.
$(ii)$ Isochore: $A$ graph plotted between pressure and temperature at a constant volume is known as an isochore.
Example: Gay-Lussac's Law.
$(iii)$ Isobar: $A$ graph plotted between volume and temperature at a constant pressure is known as an isobar.
Example: Charles's Law.