A Carnot engine has an efficiency of 40%. The Kelvin temperature of its hot reservoir is...
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A Carnot engine has an efficiency of 40%. The Kelvin temperature of its hot reservoir is quadrupled, and the Kelvin temperature of its cold reservoir is doubled. What is the efficiency that results from these changes? O 30 % O 20% 80 % O 70% O 60 % A Carnot engine has an efficiency of 40%. The Kelvin temperature of its hot reservoir is quadrupled, and the Kelvin temperature of its cold reservoir is doubled. What is the efficiency that results from these changes? O 30 % O 20% 80 % O 70% O 60 %
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