Stoichiometry A rigid vessel containing three moles of nitrogen gas at 30°C is heated to 250°C. Assume the average capacities of nitrogen to be Cp = 29.1 J/mole.°C and, Cv = 20.8 J/mole.°C. The heat required, neglecting the heat capacity of the vessel, is 4576 J 13728 J 12712 J 19206 J 4576 J 13728 J 12712 J 19206 J ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Heat of reaction is not influenced by Whether the reaction is carried out at constant temperature or constant pressure The physical state (e.g., solid, liquid or gaseous) of reactants and products None of these The route/method through which final products are obtained Whether the reaction is carried out at constant temperature or constant pressure The physical state (e.g., solid, liquid or gaseous) of reactants and products None of these The route/method through which final products are obtained ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The crystallisation of a solute from a solution may be done by Removal of pure solvent by evaporation All of these Change of temperature thereby causing supersaturation Changing the nature of the system by the addition of a more soluble material Removal of pure solvent by evaporation All of these Change of temperature thereby causing supersaturation Changing the nature of the system by the addition of a more soluble material ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH₄ + 2O₂ → CO₂ + 2H₂O. Both the reactants and products are in gas phase. ΔH°298 = - 730 kJ/mole of methane. If the average specific heat of all the gases/vapour is 40 J/mole.K, the maximum temperature rise of the exhaust gases in °C would be approximately equal to 1335 1225 1525 1735 1335 1225 1525 1735 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Addition of a non-volatile solute to a solvent produces a __________ in its solvent. All of these Boiling point depression Vapor pressure lowering Freezing point elevation All of these Boiling point depression Vapor pressure lowering Freezing point elevation ANSWER DOWNLOAD EXAMIANS APP
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