本题目来源于试卷: Particulate Nature of Matter B.1 Thermal Energy Transfers，类别为 IB物理学
[单选题]
Two ideal gases $A$ and $B$ of molar masses $m_A>m_B$ are initially at absolute temperatures $T_A
A. Before thermal equilibrium is $V_A>V_B$ ; After thermal equilibrium is $V_A>V_B$
B. Before thermal equilibrium is $V_A<V_B$ ; After thermal equilibrium is $V_A<V_B$
C. Before thermal equilibrium is $V_A>V_B$ ; After thermal equilibrium is $V_A>V_B$
D. Before thermal equilibrium is $V_A<V_B$ ; After thermal equilibrium is $V_A<V_B$
参考答案: B
本题详细解析:
| 
