4295Chemical EngineeringMedium
Which of the following polymers has the tendency of decomposing before melting?
ANylon
BPVC
CPolystyrene
DNone of these
Correct answer
B. PVC
Explanation
The correct answer is PVC.
Correct answer
B. PVC
Explanation
The correct answer is PVC.
At 100°C, water and methylcyclohexane both have vapour pressures of 1 atm. Also at 100°C, the latent heats of vaporisation of these compounds are 40.63 kJ/mole for water and 31.55 kJ/mole for methylcyclohexane. The vapour pressure of water at 150°C is 4.69 atm. At 150°C, the vapour pressure of methylcyclohexane would be expected to be________?
For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be________?
Silica bricks have low spalling resistance below 600°C, due to its________?
Road grade bitumen is produced from vacuum residue by its ________?
Separation of the isotopes of helium for scientific investigations is done by________?
Which one contains maximum percentage of Al2O3?