Tiêu đề 1.5 Capillarity, Vapour pressure.pdf ✅

Expression for Capillary Rise For equilibrium π 4 d 2 x h x ρ x g = σ x πd x cos θ h = σ x πd x cos θ π 4 d 2 x ρ x g = 4σ cos θ ρ gd The value of θ between water and clean glass tube is approximately equal to zero and hence cos θ = 1 , then h = 4σ ρ gd