Answer:
Kp = 0.004 = 4*10^-3
Explanation:
Step 1: Data given
Temperature = 25.0 °C
the total pressure of gas at equilibrium is 0.30 atm
Step 2: The balanced equation
NH4(NH2CO2)(s) ⇆ 2NH3(g) + CO2(g)
For 1 mol NH4(NH2CO2) we have 2 moles NH3 and 1 mol CO2
Step 3: The total pressure
Total pressure = pNH3 + pCO2
Total pressure = 2X + X
Total pressure = 3X = 0.30
X = 0.10
Step 4: The partial pressures
pNH3 = 2X = 2*0.10 = 0.20 atm
pCO2 = X = 0.10 atm
Step 5: Calculate Kp
Kp = (pNH3)²*(pCO2)
Kp = (0.20²)*0.10
Kp = 0.004 = 4*10^-3
