Chemical Engineering - Stoichiometry

16. 

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

Answer: Option B

Explanation:

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17. 

One micron is equal to

A. 10-4 mm
B. 10-4 cm
C. 10-6 m
D. both(b)&(c)

Answer: Option D

Explanation:

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18. 

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

A. 10.73 kJ
B. 16.15 kJ
C. 18.11 kJ
D. 18.33 kJ

Answer: Option C

Explanation:

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19. 

Gases diffuse faster compared to liquids because of the reason that the liquid molecules

A. are held together by stronger inter-molecular forces.
B. move faster.
C. have no definite shape.
D. are heavier

Answer: Option A

Explanation:

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20. 

Equal masses of CH4 and H2 are mixed in an empty container. The partial pressure of hydrogen in this container expressed as the fraction of total pressure is

A. 1/9
B. 8/9
C. 1/2
D. 5/9

Answer: Option B

Explanation:

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