Volume Calculation: Fluid into a box

How many fluid mls would fit into a box measuring 3626mm in lenth, 1875mm in width and 1216mm in height?

Mass Balance Problem

See attached for full problem. The concentration of isobutene in the overhead product is 4.8 mole %, and the concentration of propane in the bottoms is 0.7 mole %. Calculate the moles of the various components in the overhead and bottoms per 100 moles of feed.

Show a velocity expression satisfies the given partial differential equation.

Thank you in advance for your help in solving this problem. See attached problem statement.

Stokes's Problem : Calculating drag coefficients around a falling sphere.

Please see the attached problem statement.

Boundary Conditions

In solving transport phenomena problems, we use "boundary conditions" and "initial conditions". In mathematical terms, (that is, types of variables), what are "boundary conditions" and what are "initial conditions"