Question

Під час згоряння порції палива у двигуні виділилася кількість теплоти 180 кДж. Двигун при цьому виконав роботу 60 кДж. Обчисліть ККД двигуна.

Answer 1

Ответ: 33,33%

Объяснение:

Дано:

Q=180кДж

А=60кДж

==========

η-?

η=Ап/Q*100%=60/180*100%=33,33%

Answer 2

Calculation of Engine Efficiency (ККД)

To calculate the efficiency of an engine, we can use the formula:

Efficiency (ККД) = (Work Output / Heat Input) x 100%

In this case, the work output of the engine is given as 60 kJ (kilojoules) and the heat input is given as 180 kJ.

Substituting these values into the formula, we get:

ККД = (60 kJ / 180 kJ) x 100%

Simplifying the expression, we have:

ККД = (1/3) x 100%

Calculating further, we find:

ККД = 33.33%

Therefore, the efficiency of the engine is approximately 33.33%.

Please note that the efficiency of an engine can vary depending on various factors such as the type of engine, its design, and operating conditions.