Question

The boiling points of diethyl ether, acetone and n-butyl alcohol are ${35}^{o}C$, ${56}^{o}C$ and ${118}^{o}C$ respectively. Which one of the following correctly represents their boiling points in Kelvin scale?

• A. 306 $K$, 329 $K$, 391 $K$
• B. 308 $K$, 329 $K$, 392 $K$
• C. 308 $K$, 329 $K$, 391 $K$
• D. 329 $K$, 392 $K$, 308 $K$

Answer 1

Answer: (C)

308 $K$, 329 $K$, 391 $K$

Kelvin temperature is $0$ degree Celsius + $273$.
The boiling points of diethyl ether, acetone and n-butyl alcohol are ${35}^{o}C=35+273=308K$, ${56}^{o}C=56+273=329K$ and ${118}^{o}C=118+273=391K$ respectively.
Thus, $308K,329K$ and $391K$ represents their boiling points in Kelvin scale.