甲、乙两物体的质量和初温都相同，甲的比热容大于乙的比热容．在它们放出相同的热量后，将二者相互接触，接触后它们内能变化的情况是（ ）
A．甲的内能增加，乙的内能减少
B．甲的内能不变，乙的内能减少
C．甲的内能减少，乙的内能增加
D．甲、乙的内能都不变
因甲、乙两个物体的质量、温度均相同，甲的比热容大于乙的比热容，所以当它们放出相同的热量后，乙降低的温度值比甲降低的大，所以甲的温度会高于乙的温度；
当它们接触后，温度高的甲会向温度低的乙传递热量，甲放出热量、内能减少，乙吸收热量、内能增加；
故选C．
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