本题目来源于试卷: gc textbook chapter 13 temperature and kinetic theory，类别为 IB物理学
[问答题]
Explain in words how Charles’s law dc-*e- hx) xrwj+.yxm:ue8t)dah/mifox xs f.n hk+-jfl*qxmm0/i x,:llows from kinetic theory and the relation between average k -ffm:x *xmnxs/+0k.,l iqjhxinetic energy and the absolute temperature.
参考答案:
Charles’s law states that the volume of a fixed
mass of gas increases proportionately to the absolute temperature, when the
pressure is held constant. As the
temperature increases, the molecules have more kinetic energy, and the average
force exerted by a gas molecule colliding with the boundaries of the container
is proportional to the kinetic energy.
Thus the force exerted during the collisions increases. The pressure is the force per unit area, and
so for the pressure to remain constant, the surface area of the boundaries must
increase, which means the volume of the container must increase.
本题详细解析:
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