71. In case of absorption, both the operating and equilibrium lines will be straight for
72. When the liquid phase and vapour phase of a binary system obeys Raoult's and Dalton's law respectively, the relative volatility is the ratio of
73. Positive deviation from Raoult's law means a mixture whose total pressure is
74. Occurrence of 'case hardening' during drying of a high moisture solid cake __________ the drying rate.
75. Dorr thickener is an equipment used for
76. In a solution containing 0.30 Kg mole of solute and 600 kg of solvent, the molality is
77. L/mG is the expression for
78. Molecular diffusion is caused by the
79. Pore size of the molecular seive 5A is __________ mm.
80. Pick out the wrong statement.
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