Respuesta :
The masses of CO and CO2โ are 90.55g and 100โ90.55=9.45 g respectively.
Total mass.
Let the mixture has 100g as total mass.
The number of moles of CO is 2890.55โ=3.234.
The number of moles of CO2โ is 449.45โ=0.215.
The mole fraction of CO is 3.234+0.2153.234โ=0.938.
The mole fraction of CO2โ is 1โ0.938=0.062.
The partial pressure of CO is the product of the mole fraction of CO and the total pressure.
It is 0.938ร1=0.938 atm.
The partial pressure of carbon dioxide is 0.062ร1=0.042 atm.
The expression for the equilibrium constant is:
Kpโ=PCO2โโPCO2โโ=0.062(0.938)2โ=14.19
ฮngโ=2โ1=1
Kcโ=Kpโ(RT)โฮn=14.19ร(0.0821ร1127)โ1=0.153.
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