The sensible heat of hot industrial gases can be recovered by a
A.Regenerator
B.Recuperator
C.Either of (A) and (B) above
D.None of the above
Category: Chemical Engineering Mcqs
The ultimate analysis of coal gives
A.carbon hydrogen and ash
B.volatile matter moisture ash and fixed carbon
C.carbon hydrogen sulphur and nitrogen
D.volatilematter mositure nitrogen and fixed carbon
The formation of water from H2(g) and O2(g) is an exothermic reaction because
A.H2(g) and O2(g) have a higher chemical energy than water
B.H2(g) and O2(g) have a higher temperature than water
C.H2(g) and O2(g) have a lower chemical energy than water
D.energy considerations do not arise
Two pieces of wood are placed in sunlight. One is painted white and the other is painted black. It can be concluded that
A.White painted wood will not absorb any solar radiation
B.Black painted wood will not absorb any solar radiation
C.Black painted wood will absorb less heat as compared to white painted wood
D.Black painted wood will absorb more hcat as compared to white painted wood
A system is said to be an isolated system if
A.only the mass crosses the system boundary
B.only the energy crosses the system boundary
C.both energy and mass crosses the system boundary
D.neither energy nor mass crosses the system boundary
Which of the following is the most important to separate a mixture of two volatile liquids by distillation?
A.Solubility
B.Relative volatility
C.Density difference
D.Selectivity
Select the correct statement for the hydrostatic pressure variation with depth in an unaccelerated incompressible fluid in a constant gravitational field
A.It increases linearly with the increase in depth
B.It decreases with the increase in depth
C.It remains constant with the change in depth
D.It increases exponentially with the increase in depth
In radioactive disintegration ?-rays emission is always accompanied by
A.?-ray emission
B.y-ray emission
C.neutron emission
D.none of the above
65% oleum
A.is prepared by distilling 20% oleum
B.is prespared by chamber process
C.does not contain free SO3
D.contains 0.65% free SO3
