Excess Pressure

Excess pressure Po I Pp Pi & Po 2 Pp

surface flat Po -pi AP =0 convex surface PP>Po Proncave > Pconvex Ap= Pconrave - Pconvex 3 po PP Po>Pi Ap = Po- Pi Exess presscre in one surface DP = 2T R T- surface tension R = Radius of bubble or Drop pi >Po Ap = pi- P. Bubble in asiquid PP-Po - = XI 2T Bubble AP= R Po Pi> Po PP DP = Pi Po pi - = UT/ R