.
2 answers:
Answer:
Lower pressure causes the papers to move closer to each other.
Explanation:
As we know by Bernoulli's principle
so here when air between the two papers is at normal situation then let say the pressure between the two papers is
now if the air between two papers is blown by straw then the speed of air between two papers will increase.
So as per the equation above the pressure will decrease as the sum of pressure and kinetic energy per unit volume must be constant.
So here the pressure between two papers will decrease due to which the two papers will come closer to each other.
so correct answer will be
Lower pressure causes the papers to move closer to each other.
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The final temperature of the system will be equal to the initial temperature, and which is 373K. The work done by the system is 409.8R Joules.
To find the answer, we need to know about the thermodynamic processes.
<h3>How to find the final temperature of the gas?</h3>- Any processes which produce change in the thermodynamic coordinates of a system is called thermodynamic processes.
- In the question, it is given that, the tank is rigid and non-conducting, thus, dQ=0.
- The membrane is raptured without applying any external force, thus, dW=0.
- We have the first law of thermodynamic expression as,
- Here it is zero.
,
- As we know that,
- Thus, the final temperature of the system will be equal to the initial temperature,
- We found that the process is isothermal,
- Thus, the work done will be,
Where, R is the universal gas constant.
<h3>What is a reversible process?</h3>- Any process which can be made to proceed in the reverse direction is called reversible process.
- During which, the system passes through exactly the same states as in the direct process.
Thus, we can conclude that, the final temperature of the system will be equal to the initial temperature, and which is 373K. The work done by the system is 409.8R Joules.
Learn more about thermodynamic processes here:
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