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ΔG 계산. 2NH3(g) + CO2(g) → NH2CONH2(aq) + H2O(l)
Urea (NH2CONH2), an important nitrogen fertilizer,
is produced industrially by the reaction
2NH3(g) + CO2(g) → NH2CONH2(aq) + H2O(l)
Given that ΔG° = –13.6 kJ/mol,
calculate ΔG at 25℃ for the following sets of conditions:
P_NH3 = 10 atm
P_CO2 = 10 atm
[NH2CONH2] = 1.0 M
---------------------------------------------------
Q = [NH2CONH2] / ((P_NH3)^2 (P_CO2))
= (1.0) / ((10)^2 (10))
= 0.001
ΔG = ΔG° + RTlnQ
( 참고 https://ywpop.tistory.com/10336 )
= (–13600) + (8.314) (273.15+25) ln(0.001)
= –30723 J/mol
= –30.7 kJ/mol
답: –30.7 kJ/mol
[키워드] 2NH3(g) + CO2(g) → NH2CONH2(aq) + H2O(l) ΔG° –13.6 kJ/mol 25℃ 10 atm 1.0 M ΔG, CO2 + 2NH3 → NH2CONH2 + H2O
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