# Isothermal and Adiabatic Expansion

One mole of an ideal, monoatomic gas undergoes the following processes:

- Reversible, isothermal expansion from 10 atm to 2L and 5 atm ;

- Adiabatic expansion from 10 atm to 2L and 5 atm ;

Calculate q , w , change in U, and change in H for each process.

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#### Solution Preview

State functions and heat capacities for ideal gases

One mole of an ideal, monoatomic gas undergoes the following processes:

For reversible isothermal expansion of an ideal gas,

ΔU = 0 and ΔH = 0

Work done, w = nRT ln (P1/P2)

= - (1 mol) (8.314 J K-1 mol-1) (298 K) ln (10 atm / 5 atm)

temp should be provided instead of ...

#### Solution Summary

This solution offers detailed calculations and explanations related to thermodynamics.

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