Steam at 373 K is passed through a tube of radius 0.5 m and length 3m. If the thickness of the tube is 2 mm and K= 2 xx 10^(-4) in C.G.S. units find the rate of loss of heat in Js^(-1). Room temperature is 9^(@)C.

Steam at 373 K is passed through a tube of radius 0.5 m and length 3m.

1.	Steam at 373 K is passed through a tube of radius 0.5 m and length 3m. If the thickness of the tube is 2 mm and K= 2 xx 10^(-4) in C.G.S. units find the rate of loss of heat in Js^(-1). Room temperature is 9^(@)C.
Answer» Solution :`Q//t = 2 xx 10^(-4) xx 4.2 xx 10^(2) xx PI xx (0.5)^(2) xx (373 - 283)//3= 3.6 xx 10^(4) "Js"^(-1)`