How to find Otto engine clearance from efficiency and specific heat ratio

[PauloBuzon]

Homework Statement

What is the clearance of an ideal otto engine if the efficiency is 46.4% and k=1.3

Homework Equations

efficiency = Worknet/Heat Added
k=1.3 hot air T= 1900k

The Attempt at a Solution

i don't know how to start

 

[SteamKing]

Homework Statement

What is the clearance of an ideal otto engine if the efficiency is 46.4% and k=1.3

Homework Equations

efficiency = Worknet/Heat Added
k=1.3 hot air T= 1900k

The Attempt at a Solution

i don't know how to start

Well, studying the details of the Otto cycle would help:

http://mechteacher.com/otto-cycle-air-standard-efficiency-derivation/