Which of the following is a green house gas other than CO2 ?

Related Mcqs:

1. Green house gases blanket/block the infrared radiation from earth’s surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect ?

   A. CO2
   B. H2
   C. SO3
   D. N2

2. Assuming that CO2 obeys perfect gas law, calculate the density of CO2 (in kg/m3) at 263°C and 2 atm ?

   A. 1
   B. 2
   C. 3
   D. 4

3. Choose the condition that must be specified in order to liquify CO2 (triple point for CO2 is – 57°C and 5.2 atm) ?

   A. Pressure must be kept below 5.2 atm
   B. Temperature must be kept above – 57°C
   C. Pressure must be kept below 5.2 atm. and temperature must be kept above 57°C
   D. Pressure and temperature must be kept below 5.2 atm. and – 57°C respectively

4. Consider the reaction, C + O2 ⇌ CO2; ΔH = – 94 kcal. What will be the value of ΔH for the reaction CO2 → C + O2 ?

   A. -94 kcal
   B. +94 kcal
   C. > 94 kcal
   D. < -94 kcal

5. The combustion equations of carbon and carbon monoxide are as follows: C + O2 = CO2, ΔH = – 394 kJ/kg .mole CO + ½ O2 = CO2, ΔH = – 284.5 kJ/kg. mole. The heat of formation of CO is _____________ kJ/kg. mole?

   A. -109.5
   B. +109.5
   C. +180
   D. +100

6. The molar composition of a gas is 10% H2, 10% O2, 30% CO2 and balance H2O. If 50% H2O condenses, the final mole percent of H2 in the gas on a dry basis will be_______________?

   A. 10%
   B. 5%
   C. 18.18%
   D. 20%

7. 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

8. 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

9. FeO (s) + CO (g) = Fe (s) + CO2 (g), k = 0. 435 at 1173E; at equilibrium, what will be the number of moles of CO gas required to reduce one mole of FeO at 1173 K ?

   A. 1.0
   B. 1.3
   C. 2.3
   D. 3.3

10. A fluid gas produced on burning furnace oil contains 0.15 gm mole of CO2, 0.05 gm mole of oxygen and 0.80 gm mole of N2. What is its molecular weight ?

    A. 28.6
    B. 30.0
    C. 30.6
    D. 32.6