An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture?

Isotherm on an enthalpy-concentration diagram, for an ideal solution will be a ________?

A pulse tracer is introduced in an ideal CSTR (with a mean residence time I) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be________?

The velocity profile for turbulent flow through a closed conduit is________?

If two capillary tubes of dia 0.5 mm and 1 mm are dipped in a pot containing mercury, then the rise of mercury is________?

Saponification number of an oil or fat________?