Pure oxygen is mixed with air to produce an enriched air containing 50 volume % of oxygen. The ratio of moles of air to oxygen used is_________________?

Related Mcqs:

The gravimetric (i.e., by weight) composition of a vapor saturated gas is independent of the_______________?

A. Nature of both the gas & the liquid B. Temperature C. Total pressure D. None of these...

The maximum adiabatic flame temperature of fuels in air is ____________ the maximum flame temperature in pure oxygen?

A. Lower than B. Higher than C. Same as D. Not related to...

Avogadro number is the number of molecules in one ____________ of a gas?

A. gram B. Kilogram C. gm.mole D. Litre...

Pick out the wrong conversion formula for the conversion of weight units ?

A. 1 tonne = 1000 kg = 22.046 lbs B. 1 U.S. ton = 907 kg = 0.907 tonne = 0.893 ton C. 1 ton = 2240 lbs = 1016 kg = 1.016 tonnes = 1.12 U.S. tons D. None of these...

Density of carbon dioxide is _________________ kg/Nm3 ?

A. 44/22400 B. 44/22.4 C. 22.4/44 D. None of these...