Stoichiometry The net heat evolved or absorbed in a chemical process, i.e. total change in the enthalpy of the system is independent of the Number of intermediate chemical reactions involved None of these Temperature & pressure State of aggregation & the state of combination at the beginning & the end of the reaction Number of intermediate chemical reactions involved None of these Temperature & pressure State of aggregation & the state of combination at the beginning & the end of the reaction ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The heat change for the reaction, C(s) + 2S(s) → CS₂(l), is 104.2 kJ. It represents the heat of Solution Combustion Fusion Formation Solution Combustion Fusion Formation ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 1 gm mole of an alcohol whose molecular weight is 74 contains 48 gms of carbon, 10 gms of hydrogen and 16 gms of oxygen. Its molecular formula is C₄H9OH C₃H21OH (C₂H₄)2H₂.OH C2H33OH C₄H9OH C₃H21OH (C₂H₄)2H₂.OH C2H33OH ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Methane is mixed with stoichiometric proportion of oxygen and completely combusted. The number of additional specifications required to determine the product flow rate and composition is 1 3 2 1 3 2 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The boiling points for pure water and pure toluene are 100°C and 110.6°C respectively. Toluene and water are completely immiscible in each other. A well agitated equimolar mixture of toluene and water are prepared. If, at a total pressure of one standard atm. exerted by the vapours of water and toluene, the mole fraction of water Xw in the vapour phase satisfies 0 < Xw < 0.5 Xw = 0.5 Xw = 1.0 0.5 < Xw < 1.0 0 < Xw < 0.5 Xw = 0.5 Xw = 1.0 0.5 < Xw < 1.0 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. 92 -92 46 -23 92 -92 46 -23 ANSWER DOWNLOAD EXAMIANS APP
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