本题目来源于试卷: -Ideal Gas，类别为 美国物理杯赛(Physics Bowl)
[单选题]
15.19: Ten moles of helium gas are encl *wrnwwjc; 6o(idl( 5qosedyw1i,:k o7(se9q:y wxg9vpxevhs5 y9 in a container at a pressure of 1.00 atm and at a tp5hkxiq w esgy xvv 7yoey9:9w1s9,( :emperature of 400 K. Which one of the following choices best represents the density of this gas sample?
A. 0.012$\frac{kg}{m^3}$
B. 0.12$\frac{kg}{m^3}$
C. 1.2$\frac{kg}{m^3}$
D. 120$\frac{kg}{m^3}$
E. $1.2\times\:10^4\frac{kg}{m^3}$
参考答案: B
本题详细解析:
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