Convert the boiling temperature of liquid ammonia, \( - 28.1^\circ F,\) into degrees Celsius and kelvin.

The equation for converting Fahrenheit into Celsius temperature is:

\({T_{{}^ \circ C}} = \frac{5}{9} \times {T_{{}^ \circ F}} - 32\)

It is given that the boiling temperature of liquid ammonia is \( - 10^\circ F\).

\(\begin{aligned}{}{T_{{}^ \circ C}} &= \frac{5}{9} \times - 28.1{\rm{ }}^\circ F - 32\\{\rm{ }} &= - {33.38^ \circ }C\end{aligned}\)

Hence the boiling temperature of liquid ammonia is \( = - {33.38^ \circ }C\) _~ -33.4 ℃ ( round off to 3 significant figures).

The equation for converting Celsius into Kelvin temperature is:

\({T_K} = {T_{{}^ \circ C}} + 273.15\)

From the above step, we know thatthe boiling temperature of liquid ammonia is \( - {33.38^ \circ }C\).

\(\begin{aligned}{}{T_K} &= - {33.38^ \circ }C + 273.15\\{\rm{ }} &= 239.77K\end{aligned}\)

Hence the boiling temperature of liquid ammonia \( = 239.77K\)_~ 239.8 K