The maximum vapor velocity uv(m/s) at the liquid surface should be le – McqOptions

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1.	The maximum vapor velocity uv(m/s) at the liquid surface should be less than which of the following value?
A.	0.4\([\frac{ρ_L-ρ_v}{ρ_v}]^{1/2}\)
B.	0.2\([\frac{ρ_L-ρ_v}{ρ_v}]^{1/2}\)
C.	0.8\([\frac{ρ_L-ρ_v}{ρ_v}]^{1/2}\)
D.	0.2\([\frac{ρ_L-ρ_v}{ρ_v}]^{1/8}\)
Answer» C. 0.8\([\frac{ρ_L-ρ_v}{ρ_v}]^{1/2}\)

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