Question

What is the difference between first-order phase transition and second-order phase transition?

Answer 1

✳️second order phase transition:-

✍️The other type of phase transition is a second order phase transition. ... A second order phase transition does not have any latent heat associated with it; the entropy is continuous at TC

. In a second order phase transition the order parameter grows continuously from zero as the temperature drops below TC.✔️

✳️first-order phase transition:-

.✍️If enough thermal energy is not available, particles are not able to break free and ultimately remain trapped .This happens in plasma-gas, gas-liquid,and liquid -solid phase transition. Such transitions are called first order phase transitions.✔️