Chemical Engineering > GATE 2015 > Mass Transfer Coefficient
A spherical naphthalene ball of 2 mm diameter is subliming very slowly in stagnant air at 25°C. The change in the size of the ball during the sublimation can be neglected. The diffusivity of naphthalene in air at 25°C is 1.1×10^{-6} m²/s. The value of mass transfer coefficient is B × 10^{-3} m/s, where B (up to one decimal place) is _______.
Correct : 1.1
Similar Questions
As shown in the figure below, air flows in parallel to a freshly painted solid surface of width 10 m, along the z-direction
The equilibrium vapor concentrati...
Consider a vertically falling film of water over an impermeable wall. The film is in contact with a static pool of non-reactive pure gas. The gas diffuses int...
A study was conducted in which water was pumped through cylindrical pipes made of a sparingly soluble solid. For a given pipe and certain flow conditions, the m...
Total Unique Visitors
Loading......