Question: Current Attempt in Progress A diesel engine does not use spark plugs to ignite the fuel and air in the cylinders. Instead, the temperature required

Current Attempt in Progress

A diesel engine does not use spark plugs to ignite the fuel and air in the cylinders. Instead, the temperature required to ignite the fuel occurs because the pistons compress the air in the cylinders. Suppose air at an initial temperature of

31.5 C

is compressed adiabatically to a temperature of

698 C .

Assume the air to be an ideal gas for which

= \frac{7}{5} .

Find the compression ratio, which is the ratio of the initial volume to the final volume.

Number

Units

eTextbook and Media

Attempts:

0

5

used

Current Attempt in Progress A diesel engine does

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