1. Tardigrade
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  3. Physics
  4. Two cylinders A and B of equal capacity are connected to each other via a stop cock. A contains an ideal gas at standard temperature and pressure. B is completely evacuated. The entire system is thermally insulated. The stopcock is suddenly opened. The final temperature of the gas is

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Q. Two cylinders $A$ and $B$ of equal capacity are connected to each other via a stop cock. $A$ contains an ideal gas at standard temperature and pressure. $B$ is completely evacuated. The entire system is thermally insulated. The stopcock is suddenly opened. The final temperature of the gas is

Thermodynamics

Solution:

In a free expansion, the internal energy and hence the temperature does not change.