a-gasoline-powered-engine-follows-the-pv-trajectory-shown-in-the-figure-below-ca

Question

A gasoline-powered engine follows the pV trajectory shown in the figure below. Calculate the i) useful work (W_out), ii) heat extracted from the hot reservoir (Q_H), and iii) thermal efficiency (η).

PV diagram showing a gasoline engine's cycle with points A, B, C and work values.

Accepted Answer

i) W_out = 37.5 J

ii) Q_H = 278 J

iii) η = 13.5 %

Answer

i) W_out = 37.5 J

ii) Q_H = 278 J

iii) η = 13.6 %

Answer

i) W_out = 52.5 J

ii) Q_H = 230 J

iii) η = 6.75 %

Answer

i) W_out = 52.5 J

ii) Q_H = 278 J

iii) η = 13.5 %

A gasoline-powered engine follows the pV trajectory shown in the figure below. Calculate the i) useful work (Wout), ii) heat extracted from the hot reservoir (QH),and iii) thermal efficiency (η).

A gasoline-powered engine follows the pV trajectory shown in the figure below. Calculate the i) useful work (W_out), ii) heat extracted from the hot reservoir (Q_H),and iii) thermal efficiency (η).