Carnot Engine: One of the Most Efficient Engines Built So

question 25

Essay

Carnot engine: One of the most efficient engines built so far has the following characteristics:
combustion chamber temperature = 1900°C
exhaust temperature = 430°C
7.0 × 10⁹ cal of fuel produces 1.4 × 10¹⁰ J of work in one hour, where 1 cal = 4.19 J
(a) What is the actual efficiency of this engine?
(b) What is the Carnot efficiency of the engine?
(c) What is the power output of this engine?

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Definitions:

Bonds Payable

Long-term liabilities represented by bonds that a company must repay at a future date, often including periodic interest payments.

Cash Dividend

A distribution of profits by a company to its shareholders, typically given as cash.

Direct Method

An approach in cost accounting where specific costs are directly traced to cost objects without any allocation, ensuring clear cost attribution.

Operating Activities

Activities related to the day-to-day functioning of a business, including selling, administering, and producing goods and services.