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Calculate the ideal efficiency of a steam turbine that has a hot reservoir of 315 K and a condenser temperature of 217 K.
True
False
Applying external effort
True
the temperature difference between hot and cold
T hot
31
Kelvins
When using the formula for Carnot efficiency, temperature must be in
True
False
Applying external effort
True
the temperature difference between hot and cold
T hot
31
Kelvins
What determines the ideal efficiency of a heat engine?
True
False
Applying external effort
True
the temperature difference between hot and cold
T hot
31
Kelvins
For a heat engine to do mechanical work, heat must flow from a high temperature to a low temperature.
True
False
Applying external effort
True
the temperature difference between hot and cold
T hot
31
Kelvins
Many heat engines are able to convert all heat input into mehcanical energy output.
True
False
Applying external effort
True
the temperature difference between hot and cold
T hot
31
Kelvins
Heat can be made to flow from cold to hot by
True
False
Applying external effort
True
the temperature difference between hot and cold
T hot
31
Kelvins
No heat engine can have an ideal efficiency of 100%.
True
False
Applying external effort
True
the temperature difference between hot and cold
T hot
31
Kelvins
If you wanted to increase the efficiency of a heat engine which of the following would you have to increase?
True
False
Applying external effort
True
the temperature difference between hot and cold
T hot
31
Kelvins
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