Physics Unit15: Laws of Thermodynamics (id: 68d499686)

本题目来源于试卷: Physics Unit15: Laws of Thermodynamics，类别为 通用国际物理

[单选题]
One of the most efficient enginei-r3zuh(uz8h s ,lyg: hln nvvj -f k9awoyv -o8*.i.1zbuilt so far has the following characteristics: combustion chamber temperatureojkznv9i*o avf -hywy.8l 1 :-gv l,n. = ${1900}^{\circ }C$, exhaust temperature = ${430}^{\circ }C$, $7.0\times {10}^{9}cal$ of fuel produces $1.4\times {10}^{10}J$ of work in one hour. What is the power output, in hp, of this engine?

A. $5.2kW$
B. $6.1kW$
C. $7.4kW$
D. $8.3kW$


参考答案:  A


本题详细解析: 暂无

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