A four-cylinder gasoline engine has an efficiency of 25 % and delivers 210 J of work...

Question

Question

A four-cylinder gasoline engine has an efficiency of 25 % and delivers 210 J of work per cycle per cylinder.

A)

If the engine runs at 25 cycles per second (1500 rpm), determine the work done per second.

Express your answer to two significant figures and include the appropriate units.

W/t = ________

B)

What is the total heat input per second from the gasoline.

Express your answer to two significant figures and include the appropriate units.

QH/t = ________

C)

If the energy content of gasoline is 130 MJ per gallon, how long does one gallon last?

Express your answer to two significant figures and include the appropriate units.

t = __________

science physics

Answer 1

Answer #1

Answer 2

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