With increase in temperature, the electrical conductivity of semiconductors________?

Sphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle)?

With increase in temperature, the equilibrium ________ rises in case of endothermic reaction?

The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always________?

The equivalent diameter for pressure drop calculation for a fluid flowing through a rectangular cross-section channels having sides ‘x’ & ‘y’ is given by________?

Exposure to ________ accelerates the degradation of plastics?