State of matter Chemistry–Solid ,Liquid & Gas Important Chemistry Topics 👀 👉Click for Important Topics https://www.youtube.com/playlist?list=PLNG72v7gAq8KD4VsQacAwrfa29E-0xAZD Video topics are as follow: Difference between Diffusion and effusion of gases. What is evaporation, definition with explanation . Why evaporation causes cooling effect. Measurement of surface tension. Viscosity and the factors affecting viscosity. what is boiling point andState of matter Chemistry – Solid , Liquid & Gas