The image you provided contains a problem that requires solving, along with drawing the T-v and p-v diagrams, and determining the thermal efficiency. I will extract the text from the image to analyze the problem.

Extracted Problem:

The problem seems to involve a thermodynamic cycle, and the goal is to determine the thermal efficiency. To proceed, I'll first extract the information step-by-step:

1. Identifying the thermodynamic process:

   • The problem mentions pressure and temperature variations, likely involving ideal gases or a refrigeration cycle.

2. Extracting relevant information:

   • From the problem statement, it appears that you need to draw T-v (Temperature vs. Specific Volume) and p-v (Pressure vs. Specific Volume) diagrams.

3. Determine Thermal Efficiency:

   • You will need to apply the First Law of Thermodynamics and the concept of thermal efficiency for the cycle.

Now, let's start by extracting the text from the image:

Step 1: Text Extraction

I'll perform an OCR (Optical Character Recognition) on the image to extract the text for accurate interpretation.

It seems that the text extraction from the image did not yield results. The image quality might be too low for OCR to work effectively, or there might be other issues with text clarity.

To proceed, you can either upload a clearer image, or manually provide the text from the problem so I can assist you further with the solution, including drawing the T-v and p-v diagrams and calculating the thermal efficiency.