来自皇甫伟的问题
某温度时,N2+3H2=2NH3的平衡常数K=a,则此温度下,NH3=3/2H2+1/2N2的平衡常数为A.aˉ1/2B.a1/2C.1/2aD.aˉ2
某温度时,N2+3H2=2NH3的平衡常数K=a,则此温度下,NH3=3/2H2+1/2N2的平衡常数为
A.aˉ1/2B.a1/2C.1/2aD.aˉ2
1回答
2020-04-19 22:00
某温度时,N2+3H2=2NH3的平衡常数K=a,则此温度下,NH3=3/2H2+1/2N2的平衡常数为A.aˉ1/2B.a1/2C.1/2aD.aˉ2
某温度时,N2+3H2=2NH3的平衡常数K=a,则此温度下,NH3=3/2H2+1/2N2的平衡常数为
A.aˉ1/2B.a1/2C.1/2aD.aˉ2
选AN2+3H2=2NH3的平衡常数K=[NH3]2/([N2][H2]3)=a
则2NH3=3H2+N2的平衡常数K'=[N2][H2]3/[NH3]2=Kˉ1=aˉ1
所以NH3=3/2H2+1/2N2的平衡常数=([N2]1/2[H2]3/2)/[NH3]=K'1/2=aˉ1/2