Stoichiometry Air at a temperature of 20°C and 750 mm Hg pressure has a relative humidity of 80%. What is its percentage humidity?Vapour pressure of water at 20°C is 17.5 mm Hg. 79.62 80.38 80 78.51 79.62 80.38 80 78.51 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The vapor pressures of benzene and toluene are 3 and 4/3 atmospheres respectively. A liquid feed of 0.4 moles of benzene and 0.6 moles of toluene is vapourised. Assuming that the products are in equilibrium, the vapor phase mole fraction of benzene is 0.2 0.8 0.4 0.6 0.2 0.8 0.4 0.6 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry pH value of an alkaline solution is < 7 7 Constant over a wide range > 7 < 7 7 Constant over a wide range > 7 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20)? AB₃ A₂B AB₂ A₂B₃ AB₃ A₂B AB₂ A₂B₃ ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following ratios defines the recycle ratio in a chemical process? Gross feed stream/recycle feed stream Recycle stream/gross feed stream None of these Recycle stream/fresh feed stream Gross feed stream/recycle feed stream Recycle stream/gross feed stream None of these Recycle stream/fresh feed stream ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m³. It cools to 98°C ; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m³. The latent heat of condensation (kJ/kg⁻¹ ) under these conditions is 40732 540 2263 2676 40732 540 2263 2676 ANSWER DOWNLOAD EXAMIANS APP
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