One mole of nitrogen at 8 bar and 600 K is contained in a piston-cylinder arrangement. It is brought to 1 bar isothermally against a resisting pressure of 1 bar. The work done (in Joules) by the gas is________?

Ferromagnetic ceramic material is not used in the________?

Slurry reactors are characterised by the________?

The main drawback of supplying more excess air in the combustion of fuel is the________?

Maximum carbon content in any variety of steel can be upto 1.3%. Steel containing 0.4% Carbon is not used for making________?

Size reduction of ice and gypsum can be accomplished suitably by a ________ crusher?