Stoichiometry The combustion equations of carbon and carbon monoxide are as follows: C + O₂ = CO₂, ΔH = - 394 kJ/kg . mole CO + 1/2 O₂ = CO₂, ΔH = - 284.5 kJ/kg. mole. The heat of formation of CO is __________ kJ/kg. mole. -109.5 +109.5 +100 +180 -109.5 +109.5 +100 +180 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Addition of a non-volatile solute to a pure solvent Increases its freezing point Both B and C Decreases its freezing point Increases its boiling point Increases its freezing point Both B and C Decreases its freezing point Increases its boiling point ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry For the gaseous phase reaction, N₂ + O₂ ⇋ 2NO, ΔH = + 80 kJ/kg. mole; the decomposition of NO is favoured by Increasing the concentration of N₂ Increase in pressure Decrease in pressure Decrease in temperature Increasing the concentration of N₂ Increase in pressure Decrease in pressure Decrease in temperature ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A very dilute solution is prepared by dissolving 'x1' mole of solute in 'x2' mole of a solvent. The mole fraction of solute is approximately equal to X1/x2 X2/x1 1 - (x1/x2) 1/x2 X1/x2 X2/x1 1 - (x1/x2) 1/x2 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 2 litres of nitrogen at N.T.P. weighs __________ gms. 1.25 14 28 2.5 1.25 14 28 2.5 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At a constant volume, for a fixed number of moles of a gas, the pressure of the gas increases with rise of temperature due to Increase in average molecular speed Increased collision rate among molecules Increase in molecular attraction Decrease in mean free path Increase in average molecular speed Increased collision rate among molecules Increase in molecular attraction Decrease in mean free path ANSWER DOWNLOAD EXAMIANS APP
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