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Questions and Answers
What is the significance of $Q$ in the energy balance equation for a control volume?
What is the significance of $Q$ in the energy balance equation for a control volume?
Rate of heat transfer between the control volume and its surroundings
When is the power term $W$ zero in the energy balance equation for a control volume?
When is the power term $W$ zero in the energy balance equation for a control volume?
When neither power nor work is present in the system.
How can the enthalpy change of a fluid be determined in a control volume analysis?
How can the enthalpy change of a fluid be determined in a control volume analysis?
By reading the enthalpy values at the exit and inlet states from the tables.
In the context of energy balance, what does $
abla h$ represent?
In the context of energy balance, what does $ abla h$ represent?
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What does it mean when a control volume is adiabatic?
What does it mean when a control volume is adiabatic?
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In a boiler, which of the following statements about work is true?
In a boiler, which of the following statements about work is true?
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When analyzing a boiler, why are changes in potential energy often considered negligible?
When analyzing a boiler, why are changes in potential energy often considered negligible?
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What role does a condenser play in a thermodynamic system?
What role does a condenser play in a thermodynamic system?
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In a condenser, what is the primary purpose of allowing cooling water to flow inside the pipes?
In a condenser, what is the primary purpose of allowing cooling water to flow inside the pipes?
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When analyzing a control volume involving a pump, what assumption can be made about the inlet and exit pressures?
When analyzing a control volume involving a pump, what assumption can be made about the inlet and exit pressures?
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