Chemical Engineering Basics
At the point of boundary layer separation in fluid flow, the

Velocity gradient is flat
Shear stress is maximum
Shear stress is zero
Density variation is maximum

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Chemical Engineering Basics
The emf of a Deniell cell Zn | Zn²⁺ || Cu²⁺ | Cu can be increased by

Decreasing the surface area of the electrodes
Increasing the surface area of the electrodes
Increasing the concentration of zinc sulphate solution
Increasing the concentration of copper sulphate solution

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