Stoichiometry A fluid gas produced on burning furnace oil contains 0.15 gm mole of CO₂, 0.05 gm mole of oxygen and 0.80 gm mole of N₂. What is its molecular weight? 30 30.6 32.6 28.6 30 30.6 32.6 28.6 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 1735 1225 1525 1335 1735 1225 1525 1335 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10⁻³ T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to - 100°C is 18.33 kJ 16.15 kJ 10.73 kJ 18.11 kJ 18.33 kJ 16.15 kJ 10.73 kJ 18.11 kJ 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 2263 40732 540 2676 2263 40732 540 2676 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The activity co-efficient of a solution, which accounts for the departure of liquid phase from ideal solution behaviour Is a function of the liquid phase composition Measures the elevation in boiling point Is not dependent on the temperature Measures the depression in freezing point Is a function of the liquid phase composition Measures the elevation in boiling point Is not dependent on the temperature Measures the depression in freezing point ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Validity of the relationship, inputs = outputs, holds good for the system at steady state With chemical reaction Without chemical reaction & losses Without chemical reaction None of these With chemical reaction Without chemical reaction & losses Without chemical reaction None of these ANSWER DOWNLOAD EXAMIANS APP
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