本题目来源于试卷: Particulate Nature of Matter B.3 Ideal Gas Model，类别为 IB物理学
[单选题]
An ideal gas is held ehni5fg- y g;6hk4x.nj4fxm 4in a ca5oe8.syy (kqf; ap8n ontainer of volume $V$ and at pressure $P$. Gas is pumped into the container so that the number of molecules doubles and heat is added so that the average kinetic energy of the gas also doubles. The volume is adjusted so that the pressure remains constant. What is the new volume of the container?
A. 8$V$
B. 4$V$
C. 2$V$
D. $V$
参考答案: B
本题详细解析:
Explanation: The average kinetic energy doubles which means that the temperature doubles. To maintain constant pressure, volume would have to double. Since the number of molecules also doubles, volume would have to double again to maintain constant pressure. Thus the volume must get 4 times larger from $pV=nTR$
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