The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzmann‟s constant, T = absolute temperature)?

What is the absorptivity of a black body?

Sucrose is a________?

________ is the undesirable by-product produced in the manufacture of urea?

Boiling of milk in an open vessel is an example of ________ boiling?

Pick out the correct statement?