The Thermal Efficiency of a Heat Engine Is Given by $e = \frac { W _ { a g } } { \left| Q _ { h } \right| }$

question 48

Multiple Choice

The thermal efficiency of a heat engine is given by

• A) \(e = \frac { W _ { a g } } { \left| Q _ { h } \right| }\) .
• B) \(e = \frac { \left| Q _ { h } \right| - \left| Q _ { c } \right| } { \left| Q _ { h } \right| }\) .
• C) \(e = 1 - \frac { T _ { h } } { T _ { c } }\) .
• D)all of the formulas above.
• E)only (a)or (b)above.

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