Stoichiometry During a phase change process like sublimation, vaporisation, melting etc., the specific __________ does not change. Internal energy Entropy Enthalpy Gibbs free energy Internal energy Entropy Enthalpy Gibbs free energy ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Kopp's rule is useful for the determination of Activation energy Molal heat capacities of gases Heat capacities of solids Heat capacities of gases Activation energy Molal heat capacities of gases Heat capacities of solids Heat capacities of gases 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 2676 540 2263 40732 2676 540 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. Mole fraction of water vapour in the product gases is about 0.67 0.40 0.19 0.33 0.67 0.40 0.19 0.33 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A vessel of volume 1000 m³ contains air which is saturated with water vapour. The total pressure and temperature are 100 kPa and 20°C respectively. Assuming that the vapour pressure of water at 20°C is 2.34 kPa, the amount of water vapour (in kg) in the vessel is approximately 17 34 25 20 17 34 25 20 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry For an endothermic reaction, the minimum value of energy of activation will be (where, ΔH = enthalpy of the reaction) >ΔH Δ H >ΔH Δ H ANSWER DOWNLOAD EXAMIANS APP
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