In Regnault's apparatus for measuring specific heat capacity of a solid, there is an inlet and an outlet in the steam chamber. The inlet is near the top and the outlet is near the bottom. Why is it better than the opposite choice where the inlet is near the bottom and the outlet is near the top?
Answers
Answer:
Regnault’s apparatus is an excellent apparatus to measure the amount of heat energy required to change the temperature of a solid body by a known amount.
In Regnault’s apparatus the inlet is near the top and the outlet is near the bottom as steam enters at inlet and leaves in liquid phase at outlet.
When the steam enters at inlet, it loses heat, in which a part of steam condenses back to water.
On the other hand, the part of hot steam after losing heat gets denser and moves down towards the bottom.
So outlet must be in bottom as liquid lies below the steam.
It travels through the chamber there will be a lack of heat from the steam
Explanation:
- The inlet is close to the top as well as the outlet is close to the bottom, and when it travels through the chamber there will be a lack of heat from the steam.
- When the steam reduces heat, a portion of it diffuses back to water, and the cold steam becomes denser, flowing downward.
- Yet the used steam doesn't move through the chamber properly and gets mixed up when done the another way round. It can contribute to disparity in desired outcomes.
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