Q.8 A circular tube of outer diameter 5 cm and inner diameter 4 cm is used to convey hot fluid. The inner surface of the wall of the tube is at a temperature of 80 °C while the outer surface of the wall of the tube is at 25°C. What is the rate of heat transport across the tube wall per metre length of the tube at steady state, if the thermal conductivity of the tube wall is 10 W/m-K?

Evaluate

Classify as per the order of their cuts, the various petroleum products obtained from crude petroleum with their uses

Choose the option which correctly represent the labelling of the equipments shown in the figure below. |=? Il =? III =? A. I. Cylinder II. Titrant III. Burette B. I. Burette II. Titrant II. Erlenmeyer flask C. I. Erlenmeyer flask II. Analyte III. Burette D. I. Erlenmeyer flask II. Burette III. Analyte