The states of matter depending upon the interparticle distances are shown in the following diagram.\

Question

The states of matter depending upon the interparticle distances are shown in the following diagram.\ The conditions $a, b, c, d$ are

Professor PC Thomas Classes · Answer

(a): On increasing temperature and decreasing pressure, the interparticle distance between the particles increases. Hence, the matter changes its state from solid to liquid and liquid to gas.