A 5-Mol Ideal Gas System Undergoes an Adiabatic Free Expansion

question 24

Multiple Choice

A 5-mol ideal gas system undergoes an adiabatic free expansion (a rapid expansion into a vacuum) , going from an initial volume of 10 L to a final volume of 20 L. How much work is done on the system during this adiabatic free expansion?

• A) "-50 J"
• B) "-10 J"
• C) "zero"
• D) "+50 J"

Predict the number of signals in NMR spectrum for different organic compounds.

Understand the concept of chemical shift and its relevance to structure determination.

Explain the relationship between nuclear spin states and the magnetic field.

Calculate frequencies and magnetic fields for proton resonances.

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