Stoichiometry Objective Questions and Answers

344. 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

345. A solution is made by dissolving 1 kilo mole of solute in 2000 kg of solvent. The molality of the solution is

A. 2

346. 1 gm mole of methane (CH₄) contains

A. 6.02 × 10²³ atoms of hydrogen

B. 4 gm atoms of hydrogen

C. 3.01 × 10²³ molecules of methane

D. 3 gms of carbon

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347. Pick out the wrong statement.

A. The effect of pressure on heat capacity of gases at pressure above one atmosphere and above the critical temperature is negligible

B. The value of C_p of gases increases with increase in pressure, above atmospheric pressure

C. The value of C_p at critical temperature and pressure reaches infinity

D. All of the above

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348. The rate of material __________ is zero in case of a steady state system.

349. N.T.P. corresponds to

A. 1 atm.absolute pressure& 0°C

B. 760 mm Hg gauge pressure & 0°C

C. 760 torr & 15°C

D. 101.325 KPa gauge pressure & 0°C

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350. The percentage ratio of the partial pressure of the vapor to the vapor pressure of the liquid at the existing temperature is

A. Termed as relative saturation

B. Not a function of the composition of gas mixture

C. Called percentage saturation

D. Not a function of the nature of vapor

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Chemical Engineering Objective Questions { Stoichiometry }