Latent heat absorbed by 1 lb of water at 212°F, when it is changed to steam at 212°F, may be around ______________ BTU?

Related Mcqs:

The wavelength at which the maximum monochromatic emissive power occurs for a black body, is (where, T = absolute temperature of the black body)?

A. αT B. α × 1/T C. α T4 D. Independent of T...

Hot water (0.01 m3 /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m3/min) of density 800 kg/m3 and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately ?

A. 32 B. 37 C. 45 D. 50...

When vaporisation takes place directly at the heating surface, it is called________________?

A. Film boiling B. Nucleate boiling C. Vapour binding D. None of these...

‘Fouling factor’ used in the design of a multipass shell and tube heat exchanger is a_____________________?

A. Non-dimensional factor B. Factor of safety C. Conversion factor for individual film heat transfer co-efficient to overall heat transfer coefficient D. None of these...

The Fourier number (defined as a.t/L2) is used in the analysis of problem involving heat transfer by_______________?

A. Forced convection B. Natural convection C. Transient conduction D. Steady state conduction...