Chemical Engineering — Test 182
Page 1 of 3
Question 1
Size range of the colloids particles is __________________?
Question 2
Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10-3 T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to – 100°C is ____________________?
Question 3
1 kg of calcium carbide (CaC2) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour ?
Question 4
Addition of a non-volatile solute to a solvent produces a ______________ in its solvent?
Question 5
With increase in the temperature of pure (distilled) water, its____________________?
Question 6
6 gms of magnesium (atomic weight = 24), reacts with excess of an acid, the amount of H2 produced will be ______________ gm?
Question 7
Boiling point of a solution as compared to that of the corresponding solvent is _________________?
Question 8
Number of gm moles of solute dissolved in 1 kg of solvent is called its___________________?
Question 9
1 Pascal (unit of pressure) is equal to _______________ N/m2 ?
Question 10
Assuming that CO2 obeys perfect gas law, calculate the density of CO2 (in kg/m3) at 263°C and 2 atm ?