Question: In an engine working on ideal Otto cycle, the temperature at the beginning and end of compression are (45^{circ} mathrm{C}) and (370^{circ} mathrm{C}) respectively. Find

In an engine working on ideal Otto cycle, the temperature at the beginning and end of compression are $45^{\circ} \mathrm{C}$ and $370^{\circ} \mathrm{C}$ respectively. Find the compression ratio and airstandard efficiency of the engine. Assume $\gamma=1.4$.

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