3. 當理想氣體反抗一定的壓力做絕對膨脹時，則？(A)反應熱總是不變 (B)熱力學能總是增加(C)反應熱總是增加 (D)熱力學能總是減少

理想液態混合物的混合性質是？ (A) \( \Delta_{mix}V = 0, \Delta_{mix}H = 0, \Delta_{mix}S > 0, \Delta_{mix}G < 0 \)(B) \( \Delta_{mix}V < 0, \Delta_{mix}H < 0, \Delta_{mix}S < 0, \Delta_{mix}G = 0 \)(C) \( \Delta_{mix}V > 0, \Delta_{mix}H > 0, \Delta_{mix}S = 0, \Delta_{mix}G = 0 \)(D) \( \Delta_{mix}V > 0, \Delta_{mix}H > 0, \Delta_{mix}S < 0, \Delta_{mix}G > 0 \)