Siklus Carnot

\begin{equation*}
\begin{split}
\frac {Q_1}{Q_2} & = \frac {T_1}{T_2} \\\\
\frac {4000}{Q_2} & = \frac {127^{\text{o}} + 273^{\text{o}}}{27^{\text{o}} + 273^{\text{o}}} \\\\
\frac {4000}{Q_2} & = \frac {400}{300} \\\\
400 \:.\: Q_2 & = 300 \:.\: 4000 \\\\
Q_2 & = \frac {300 \:.\: 4000}{400} \\\\
Q_2 & = 3000 \text{ J}
\end{split}
\end{equation*}