【单选题】已知下列反应在指定温度的 Δ r G θ m 和 K θ : ( 1 ) N 2 ( g ) + O 2 (g) = N 2 O (g ) Δ r G m θ (1) , K θ (1) ( 2 ) N 2 O 4 (g ) = 2NO 2 (g) Δ r G m θ (2) , K θ (2) ( 3 ) N 2...
A.
4 Δ r G m θ (3)- Δ r G m θ (2) - Δ r G m θ (1) , ( K θ 3 ) 4 /( K θ 1 K θ 2 )
B.
3 Δ r G m θ (3)- 2 Δ r G m θ (2) - 2 Δ r G m θ (1) , ( K θ 3 ) 3 /( K θ 1 K θ 2 ) 2
C.
4 Δ r G m θ (3)- 2 Δ r G m θ (2) - 2 Δ r G m θ (1) , ( K θ 3 ) 4 /( K θ 1 K θ 2 ) 2
D.
2 Δ r G m θ (3)- 2 Δ r G m θ (2) - 2 Δ r G m θ (1) , ( K θ 3 ) 2 /( K θ 1 K θ 2 ) 2