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. +180 -109.5 +100 +109.5 +180 -109.5 +100 +109.5 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A sample of well water contains 140 gm/m³ Ca²⁺ ions and 345 gm/m³ Na⁺ ions. The hardness of the sample of water, expressed in terms of equivalent CaCO₃ in gm/m³ is (assuming atomic masses of Ca :40, Na : 23, C : 12, O : 16) 140 485 345 350 140 485 345 350 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry For a given mass of a gas at constant temperature, if the volume 'V' becomes three times, then the pressure 'P' will become 9P 3P 9P² P/3 9P 3P 9P² P/3 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 16.15 kJ 18.11 kJ 10.73 kJ 18.33 kJ 16.15 kJ 18.11 kJ 10.73 kJ 18.33 kJ ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 1 ata is equivalent to 0.98 Pascal 1 kgf/cm² 10 torr 1 atm 0.98 Pascal 1 kgf/cm² 10 torr 1 atm 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 Decrease in pressure Increasing the concentration of N₂ Decrease in temperature Increase in pressure Decrease in pressure Increasing the concentration of N₂ Decrease in temperature Increase in pressure ANSWER DOWNLOAD EXAMIANS APP
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