High School

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Water vapor is cooled in a closed, rigid tank from 520°C and 100 bar to 270°C. Determine the final pressure, in bar.

A) 23.5 bar
B) 31.3 bar
C) 38.1 bar
D) 45.9 bar

Answer :

Final answer:

Correct option is D) To find the final pressure in a closed, rigid tank as water vapor is cooled from 520°C and 100 bar to 270°C, use the ideal gas law equation. The final pressure is 45.9 bar (D).

Explanation:

The final pressure in the tank can be determined using the ideal gas law equation:

P1V1/T1 = P2V2/T2

Given initial values of 520°C and 100 bar, and final temperature of 270°C, we can calculate the final pressure in the tank to be 45.9 bar (D).

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