Stoichiometry The forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation Increases with pressure rise Decreases with increasing pressure Becomes zero at the critical point Both B & C Increases with pressure rise Decreases with increasing pressure Becomes zero at the critical point Both B & C ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry In the reaction, Ca + 2H₂O = Ca(OH)₂ + H₂ ; what volume (c.c.) of hydrogen at STP would be liberated, when 8 gm of calcium reacts with excess water? (atomic weight of calcium = 40) 1120 2240 4480 0.4 1120 2240 4480 0.4 ANSWER DOWNLOAD EXAMIANS APP
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 One micron is equal to 10⁻⁴ mm Both B & C 10⁻⁴ cm 10⁻⁶ m 10⁻⁴ mm Both B & C 10⁻⁴ cm 10⁻⁶ m ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Refluxing of part of the distillate in a fractionating column is a 'recycling operation', aimed primarily at Product enrichment None of these Yield enhancement Heat conservation Product enrichment None of these Yield enhancement Heat conservation ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry In a chemical process, the recycle stream is purged for Increasing the product yield Limiting the inerts Enriching the product Heat conservation Increasing the product yield Limiting the inerts Enriching the product Heat conservation ANSWER DOWNLOAD EXAMIANS APP
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