Question

steam at 374k is passed through a tube of radius 50cm and length 3m.If thikness of the tube is 2mm and conductivity of its material be 2*10^4 Cal's cm k calculate the rate of loss of heat in j .The outside temperature is 282k​


please answer this question​

Answer 1

Answer:

Q=ka(t1-t2)t÷L

A=2πr(radius of tube)(length of tube)

Explanation:

k=390Wm^-1K^-1

T1=373k,T2=0°c=273k,L=5mm=0.005m

t=1s

Q=390×0.4π÷100÷0.005= 98×10^5J