1.

For laminar film condensation on a vertical plate, the local heat transfer coefficient at the lower edge of the plate is given by

A. [k <sup>3</sup> p<sup> 2</sup> g h <sub>f g </sub>/4 δ l (t <sub>sat</sub> – t <sub>s</sub>)] <sup>0.25</sup>
B. [k <sup>3</sup> p<sup> 2</sup> g h <sub>f g </sub>/4 δ l (t <sub>sat</sub> – t <sub>s</sub>)] <sup>0.5</sup>
C. [k <sup>3</sup> p<sup> 2</sup> g h <sub>f g </sub>/4 δ l (t <sub>sat</sub> – t <sub>s</sub>)] <sup>0.1</sup>
D. [k <sup>3</sup> p<sup> 2</sup> g h <sub>f g </sub>/4 δ l (t <sub>sat</sub> – t <sub>s</sub>)] <sup>0.125</sup>
Answer» B. [k <sup>3</sup> p<sup> 2</sup> g h <sub>f g </sub>/4 ‚âà√≠¬¨‚Ä¢ l (t <sub>sat</sub> ‚Äö√Ñ√∂‚àö√ë‚àö¬® t <sub>s</sub>)] <sup>0.5</sup>


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