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In a throttling process
- a)heat transfer takes place
- b)work is done by the expanding steam
- c)internal energy of steam changes
- d)all of the above
- e)none of the above
Correct answer is option 'E'. Can you explain this answer?
Most Upvoted Answer
In a throttling processa)heat transfer takes placeb)work is done by th...
Throttling Process in Thermodynamics
A throttling process is an isenthalpic process in which the enthalpy of the fluid or gas remains constant. During the throttling process, the fluid or gas passes through a restriction such as a valve or a narrow opening, which leads to a decrease in pressure and an increase in velocity. This process is commonly used in steam turbines, refrigeration systems, and gas pipelines.
Explanation of Options
a) Heat transfer takes place: In a throttling process, there is no heat transfer between the system and the surroundings. The process is adiabatic, meaning there is no exchange of heat energy.
b) Work is done by the expanding steam: In a throttling process, the steam or fluid expands due to the decrease in pressure, but no work is done by the system. This is because the process is isenthalpic, and the enthalpy remains constant.
c) Internal energy of steam changes: In a throttling process, the internal energy of the steam or fluid remains constant. This is because the process is adiabatic, and there is no exchange of heat energy.
d) All of the above: None of the options are correct, therefore this option is also incorrect.
e) None of the above: This is the correct option as none of the above options are correct.
Conclusion
In conclusion, a throttling process is an isenthalpic and adiabatic process in which there is no exchange of heat energy and no work is done by the system. Therefore, the correct answer to the given question is option 'E' i.e. none of the above.
A throttling process is an isenthalpic process in which the enthalpy of the fluid or gas remains constant. During the throttling process, the fluid or gas passes through a restriction such as a valve or a narrow opening, which leads to a decrease in pressure and an increase in velocity. This process is commonly used in steam turbines, refrigeration systems, and gas pipelines.
Explanation of Options
a) Heat transfer takes place: In a throttling process, there is no heat transfer between the system and the surroundings. The process is adiabatic, meaning there is no exchange of heat energy.
b) Work is done by the expanding steam: In a throttling process, the steam or fluid expands due to the decrease in pressure, but no work is done by the system. This is because the process is isenthalpic, and the enthalpy remains constant.
c) Internal energy of steam changes: In a throttling process, the internal energy of the steam or fluid remains constant. This is because the process is adiabatic, and there is no exchange of heat energy.
d) All of the above: None of the options are correct, therefore this option is also incorrect.
e) None of the above: This is the correct option as none of the above options are correct.
Conclusion
In conclusion, a throttling process is an isenthalpic and adiabatic process in which there is no exchange of heat energy and no work is done by the system. Therefore, the correct answer to the given question is option 'E' i.e. none of the above.
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