Stoichiometry Enthalpy of formation of NH₃ is - 46 kJ/kg mole. The enthalpy change for the gaseous reaction, 2NH₃ → N₂ + 3H₂, is equal to __________ kJ/kg. mole. -23 92 -92 46 -23 92 -92 46 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Refluxing of part of the distillate in a fractionating column is a 'recycling operation', aimed primarily at Heat conservation None of these Yield enhancement Product enrichment Heat conservation None of these Yield enhancement Product enrichment ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 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 60.3 720 200 180 60.3 720 200 180 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry pH value of H₂SO₄ (5% concentration) is > 7 < 7 5 7 > 7 < 7 5 7 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Average molecular weight of air is about 29 79 23 21 29 79 23 21 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be -136.5°C -136.5°K 0°K 0°C -136.5°C -136.5°K 0°K 0°C ANSWER DOWNLOAD EXAMIANS APP
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