g Which is more efficient, a constant volume combustion cycle, of a constant pressure combustion cycle

Constant Volume Combustion Cycle

Explanation:

Constant volume combustion (eg. petrol) produces a much more indicated fuel conversion efficiency when compared with constant pressure combustion. This is so because petrol as we all know, is a highly volatile fuel, and as a result needs only just a spark to ignite. Petrol also forms an homogeneous mixture with air, and it doesn't require any more higher compression ratios in order to ignite itself. Petrol also easily burns and can be converted to give power. On the other hand, Constant pressure combustion (eg. Diesel), is not as volatile as compared with Constant Volume combustion. Constant pressure needs to have high compression ratios before it can ignite. Unlike constant volume that firms homogeneous, constant pressure forms a heterogeneous mixture in which the fuel is added in form of atomization. This means that it is split into little droplets. It is harder to, and takes longer to ignite fully. Also, it's spontaneous ignition occurs at different points in combustion chamber making it to require more air or oxygen I'm order to complete combustion.

answer:

(b)

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answer:

try looking it up that is always

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