给定可逆反应，当温度由T1升至T2时，平衡常数Kθ2 Kθ1，则该反应的（）A、ΔrHθm〉0B、ΔrHθm〈0C、ΔrHθm=0D、无法判断
给定可逆反应，当温度由T1升至T2时，平衡常数Kθ2 > Kθ1，则该反应的（）
- A、ΔrHθm〉0
- B、ΔrHθm〈0
- C、ΔrHθm=0
- D、无法判断
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