Why Does dV/V Equal ln(Vd/Va) in Physics Homework?

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The discussion centers on the equation dV/V = ln(Vd/Va), which was presented in lecture slides, causing confusion among students regarding its derivation and application. Participants express uncertainty about their solutions to related homework problems and seek clarification on specific parts of the assignment. There is a request for assistance, particularly from a user named Someren, to address questions about parts b and c of the homework. Additionally, there is a mention of missing attachments that are crucial for understanding the problem. Overall, the thread highlights the need for further explanation of the equation and its relevance to the homework tasks.
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Homework Statement



See attachment

In the first place I don't understand why you can just say: dV/V = ln(Vd/Va) ( was given in lecture slides)

And I am not sure if my attempt to the solutions is any good...
Hope Someren can help me a bit with b and c


Homework Equations





The Attempt at a Solution



See second attachment
 

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I think you have forgotten to attach the files.
 
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BOAS said:
I think you have forgotten to attach the files.

Can you help me now the attachment is there? Thanks!
 

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