A Heat Engine Operates Between a Hot Reservoir at 1500

question 74

Multiple Choice

A heat engine operates between a hot reservoir at 1500 K and a cold reservoir at 500 K.During each cycle,1.0 × 10⁵ J of heat is removed from the hot reservoir and 5.0 × 10⁴ J of work is performed.
-Determine the Carnot efficiency of this engine.

• A)0.15
• B)0.34
• C)0.50
• D)0.67
• E)0.81

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Definitions:

Regression Coefficient

A measure in statistics that represents the relationship strength and direction between a dependent variable and an independent variable.

Estimated Value

A value determined through approximation or inference based on statistical models, often used when exact data is unavailable.

Partial Regression Coefficient

A measure that represents the change in the dependent variable for a one-unit change in the predictor variable, holding all other predictors constant.

Coefficient of Determination

A statistical measure, often denoted as \(R^2\), that represents the proportion of the variance in the dependent variable that is predictable from the independent variables.