回答:
沸点为598K
说明:
鉴于:Planet的大气压= 380 mmHg
Clausius-Clapeyron方程
R =理想气体常数 ##约 8.314kPa * L / mol * K或J / mol * k
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解决L:
#ln(52.3 / 22.1)= - L /(8.314 frac {J} {mol * k})*( frac {1} {380K} - frac {1} {328K})#
#ln(2.366515837 …)*(8.314 frac {J} {mol * k})/( frac {1} {380K} - frac {1} {328K})= -L#
#0.8614187625 *(8.314 frac {J} {mol * k})/( frac {1} {380K} - frac {1} {328K})= -L#
#0.8614187625 *(8.314 frac {J} {mol * k})/( - 4.1720154 * 10 ^ -4K)#
#L about 17166 frac {J} {mol}#
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我们知道,当蒸气压大于或等于大气压时,物质沸腾,因此,我们需要求解蒸气压大于或等于380mmHg的温度:
解决T:
#ln(380 / 52.3)=( - 17166 frac {J} {mol})/(8.314 frac {J} {mol * k})*(1 / T - frac {1} {380K})#
#ln(380 / 52.3)*(8.314 frac {J} {mol * k})/(-17166 frac {J} {mol})=(1 / T - 1 / 380K)#
#ln(380 / 52.3)*(8.314 frac {J} {mol * k})/( - 17166 frac {J} {mol}) +(1/380)=(1 / T)#
#T = 1 / ln(380 / 52.3)*(8.314 frac {J} {mol * k})/( - 17166 frac {J} {mol}) +(1/380)#
#T约598.4193813 K约598 K#
因此,沸点是 #约598 K#