polystyrene
polyester
high density polythene
polyurathane
✅ The correct answer is option A.
Chemical Engineering MCQs
In a P-V diagram (for an ideal gas), an isothermal curve will coincide withan adiabatic curve (through a point), when
A. Cp < Cv
B. Cp = Cv
C. Cp > Cv
D. Cp ≥ Cv
✅ The correct answer is option B.
In condensation polymerisation as compared to addition polymerisation
the monomers are unsaturated compounds.
no co-product is lost.
the monomers contain two functional groups.
generally only one monomer is involved
✅ The correct answer is option C.
Polyvinyl alcohol is used as a
cation/anion exchanger.
water soluble adhesive.
textile fibre.
non-sticky coating on frying pans.
✅ The correct answer is option B.
__________ calorimeter is normally used for measuring the dryness fraction of steam, when it is very low.
A. Bucket
B. Throttling
C. Separating
D. A combination of separating & throttling
✅ The correct answer is option D.
__________ decreases during adiabatic throttling of a perfect gas.
A. Entropy
B. Temperature
C. Enthalpy
D. Pressure
✅ The correct answer is option D.
Gibbs free energy at constant pressure and temperature under equilibrium conditions is
A. ∞
B. 0
C. Maximum
D. Minimum
✅ The correct answer is option D.
dW and dq are not the exact differential, because q and W are
A. State functions
B. Path functions
C. Intensive properties
D. Extensive properties
✅ The correct answer is option B.
Any substance above its critical temperature exists as
A. Saturated vapour
B. Solid
C. Gas
D. Liquid
✅ The correct answer is option C.
Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butediene rubber) are
50°C and 3 – 4 kg/cm2
50°C and 1 kgf/cm2
250°C and 10 kgf/cm2
250°C and 1 kgf/cm2
✅ The correct answer is option A.