1 bar is almost equal to __________ atmosphere.
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Which of the following expressions defines the Baume gravity scale for liquids heavier than water?
A. (141.5/G) - 131.5
B. 145 - (145/G)
C. 200(G-1)
D. (400/G) - 400
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Which of the following gravity scales is used exclusively for liquids heavier than water?
A. Baumme scale
B. Twaddel scale
C. API scale
D. None of these
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Which of the following expressions defines the Baume gravity scale for liquids lighter than water?
A. °Be = (140/G) - 130
B. °Be = 200(G-1)
C. °Be = 145 - (145/G)
D. °Be = (400/G) - 400
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An azeotropic solution of two liquids has boiling point lower than either of them, when it
A. Is saturated
B. Is unsaturated
C. Shows negative deviation from Raoult's law
D. Shows positive deviation from Raoult's law
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A chemical process is said to occur under unsteady state, if the
A. Inventory changes do not take place
B. Ratio of streams entering/leaving are independent of time
C. Flow rates & composition both are time dependent
D. None of these
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In a binary liquid solution of components A and B, if component A exhibits positive deviation from Raoult's law, then component B
A. Exhibits positive deviation from Raoult's law
B. Exhibits negative deviation from Raoult's law
C. Obeys Raoult's law
D. May exhibit either positive or negative deviation from Raoult's law
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Number of gm moles of solute dissolved in one litre of a solution is called its
A. Equivalent weight
B. Molarity
C. Molality
D. Normality
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A perfectly insulated container of volume V is divided into two equal halves by a partition. One side is under vacuum, while the other side has one mole of an ideal gas (with constant heat capacity) at 298 K. If the partition is broken, the final temperature of the gas in the container
A. Will be greater than 298 K
B. Will be 298 K
C. Will be less than 298 K
D. Can not be determined
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How many phases are present at eutectic point?
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The pressure of 'V' litres of a dry gas is increased from 1 to 2 kgf/cm2 at a constant temperature. The new volume will become
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The temperature at which the second Virial co-efficient of a real gas is zero is called the
A. Eutectic point
B. Boyle temperature
C. Boiling point
D. Critical temperature
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The vapor pressure of liquids of similar chemical nature at any particular temperature __________ with increase in the molecular weight.
A. Increases
B. Decreases
C. Remains unchanged
D. Either A or B; depends on the liquid
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The depression in freezing point of a solution is
A. Inversely proportional to the mass of solvent
B. Directly proportional to the mole of solute
C. Both A & B
D. Neither A nor B
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In a mixture of benzene vapor and nitrogen gas at a total pressure of 900 mm Hg, if the absolute humidity of benzene is 0.2 kg benzene/kg nitrogen, the partial pressure of benzene in mm Hg is
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Saturated molal absolute humidity of the vapor-gas mixture depends upon the
A. Vapor pressure at dry bulb temperature
B. Total pressure
C. Both A & B
D. Neither A nor B
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6 gms of magnesium (atomic weight = 24), reacts with excess of an acid, the amount of H2 produced will be __________ gm.
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One micron is equal to __________ cm.
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Pick out the wrong unit conversion of thermal conductivity.
A. 1 BTU/ft2 .hr.°F/ft = 1.488 kcal/m2 .hr.°C/m
B. 1 BTU/ft2 .hr.°F/inch = 1.488 kcal/m2 .hr.°C/m
C. 1 kcal/m.hr.°C = 0.672 BTU/ft.hr.°F = 1.163 W/m.°K
D. 1 W/cm.°C = 85.985 kcal/m.hr.°C = 57.779 BTU/ft.hr.°F
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Kopp's rule is helpful in finding the
A. Heat capacities of solids
B. Heat capacities of gases
C. Molal heat capacities of gases
D. Activation energy
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