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Pressurized Water is heated in a thin tube with a diameter of 60 mm. water enters...

Pressurized Water is heated in a thin tube with a diameter of 60 mm. water enters with a mass flow rate of 0.01 kg/s and an inlet temperature of 20°C. a uniform heat flux of 2000 W/m2 is applied to the tube. What is the required length of the tube to obtain an exit temperature of 80°C for the water? If the water reaches 80°C at the outlet, what is the surface temperature of the tube at the outlet?

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