Cold crushing strength of fireclay bricks is about ________ kgf/cm2?

With increase in temperature, the thermal conductivity of a gas ________?

A distillation column separates 10000 kg/hr of a benzene-toluene mixture as shown in the figure below: In the figure xF, xD and xW represent the weight fraction of benzene in the feed, distillate and residue respectively. The reflux ratio is________?

When the liquid phase and vapour phase of a binary system obeys Raoult’s and Dalton’s law respectively, the relative volatility is the ratio of________?

________ functions are exemplified by heat and work?

Optimum ratio of operating speed to critical speed of a trommel is________?