En un proceso adiabático con gas ideal, la presión disminuye. Entonces, ¿la energía interna del gas aumenta o disminuye durante ese proceso? Explique el proceso.

 

Answer : INTERNAL ENERGY DECREASE

Step-by-step explanation

From your Question;

Ideal Gas Adiabatically decrease in Pressure it means that " IT IS ADIABATICALLY ".

Looking at the P-V diagram.

When a gas expands adiabatically, there is a decrease in the temperature that takes place.

This is substantiated from the below mentioned equation. The 1st law of thermodynamics equation.

deltaQ = deltaU + deltaW

Since it is an adiabatic process, therefore

deltaQ =0.

Therefore,

deltaU = deltaW

Now, as it an expansion process the work has to be positive. Then, by the 1st law thermodynamics, there has to be a decrease in the internal energy and hence a decrease in temperature ( based in the p-v diagram)

Note:

As the change in internal energy is depend only on work done. If work done on the system the internal energy increases and if the Work done by the system the internal energy decreases.

Therefore:

As in question asked about change in internal energy in the case of adiabatic expansion. We can infer that the internal energy decreases in case of adiabatic expansion.

Please use this google drive link to download the answer file.                                

https://drive.google.com/file/d/1uHvGvdTf1DceJ45h7K5IsROjxsqvyC7M/view?usp=sharing                                

Note: If you have any trouble in viewing/downloading the answer from the given link, please use this below guide to understand the whole process.                                
                                
https://helpinhomework.org/blog/how-to-obtain-answer-through-google-drive-link