Grams of butane (C4H10) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be__________________?

Related Mcqs:

1. A butane isomerisation process produces 70 k.mole/hr of pure iso-butane. A purge stream removed continuously, contains 85% n-butane and 15% impurity (mole%). The feed stream is n-butane containing 1% impurity (mole%). The flow rate of the purge stream will be_________________?

   A. 3 kmole/hr
   B. 4 kmole/hr
   C. 5 kmole/hr
   D. 6 kmole/hr

2. A cylinder contains 640 gm of liquid oxygen. The volume occupied (in litres) by the oxygen, when it is released and brought to standard conditions (0°C, 760 mm Hg) will be _____________ litres?

   A. 448
   B. 224
   C. 22.4
   D. Data insufficient; can’t be computed

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 ?

   A. 5
   B. 10
   C. 15
   D. 20

4. Linde gas liquefaction process employs cooling ____________________?

   A. By throttling
   B. By expansion in an engine
   C. At constant pressure
   D. None of these

5. Claude gas liquefaction process employs cooling___________________?

   A. At constant pressure
   B. By throttling
   C. By expansion in an engine
   D. None of these

6. The compressibility factor of a gas is given by (where, V1 = actual volume of the gas V2 = gas volume predicted by ideal gas law)____________________?

   A. V1/V2
   B. V2/V1
   C. V1 – V2
   D. V1.V2

7. The density of a gas ‘X’ is twice that of another gas ‘Y’. If the molecular weight of gas ‘Y’ is ‘M’; then the molecular weight of the gas ‘X’ will be________________?

   A. 2M
   B. M/2
   C. M
   D. M/4

8. Claude’s liquefaction process employs the cooling of gases by__________________?

   A. Expansion in an engine
   B. Following a constant pressure cycle
   C. Throttling
   D. None of these

9. The principle applied in liquefaction of gases is_____________________?

   A. Adiabatic expansion
   B. Joule-Thomson effect
   C. Both A. and B
   D. Neither A. nor B

10. Assuming applicability of ideal gas law, the pure component volume of the vapor in a saturated gas can be calculated from theoretical relationship. The volumetric composition of a vapor saturated gas is independent of the___________________?

    A. Nature of the liquid
    B. Nature of the gas
    C. Temperature of the liquid
    D. Total pressure