The activity of pure hydrogen gas at 1000°C and 5 atm pressure_________________?

Related Mcqs:

Case hardening is not done by________________?

A. Nitriding B. Hot dipping C. Electroplating D. Both ‘B’ & ‘C’...

The ratio of thermal & electrical conductivity is same for all the metals at the same temperature; and at around room temperature, this ratio is proportional to(where, T = absolute temperature, °K) ?

A. T B. 1/T C. T2 D. 1/T2...

Which of the following fastening devices has its both ends threaded ?

A. Bolt B. Stud C. Set screw D. Split nut...

Identify the correct statement with reference to the extractive metallurgy of aluminium ?

A. The electrolyte consists of molten Na3AlF6 with approximately 1 to 8% Al2O3 B. Approximately 80% of the aluminium deposited on the cathode comes from cryolite C. Sodium is deposited along with aluminium, but is immediately vaporised D. Anode effect sets in when the cryolite concentration goes below 40%....

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m2 .k), when the insulation thickness is ________________ mm?

A. 15 B. 25 C. 10 D. 30...