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 enclosed in a container ofzh2-o;4q,;wqtd uye k fixei/cv a319dpw:wxw(h x d volume. When the temperature of the g9 hpwwv3x/a (diwcx:1as is i$27^{\circ}C$ ts pressure is $p$. Calculate the pressure in the gas when it is heated to $54^{\circ}C$
A. $p$
B. 1.09$p$
C. 1.5$p$
D. 2$p$
参考答案: B
本题详细解析:
Temperature appears to be doubled; but that is using the celsius scale. Absolute temperature is not doubled. So, D is incorrect. Volume cannot change, since the container's volume is fixed. The number of moles cannot change since the gas is enclosed in the container. Hence, pressure is proportional to absolute temperature: $\frac{p_2}{p}=\frac{273+54}{273+27}⇒p_2=1.09p$.
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