Question

One mole of an ideal gas at 300 K is expanded isothermally from an initial volume of 1 litre to 10 litres. The ΔE for this process is (R=2cal.mol–1K–1) :

Answer 1

If you dump some sodium chloride into some water, the solution is conductive. That’s because the salt dissociates into sodium and chlorine ions after it hits the water. Ions are mobile and have a charge, and thus the solution can easily support electrical current.

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