Why is internal energy of water determined by temperature alone false?

[sparkle123]

Homework Statement

Why is this false?
"if systems A and B each consist of pure liquid water at 1 bar pressure and if TA>TB, then the internal energy of system A must be greater than that of B"

Homework Equations

The Attempt at a Solution

It seems true to me. Could it be that B has more molecular translational, rational, vibrational, electronic energies? but then wouldn't t be higher?
also i thought U was a function of T.

 

[Andrew Mason]

Homework Statement

Why is this false?
"if systems A and B each consist of pure liquid water at 1 bar pressure and if TA>TB, then the internal energy of system A must be greater than that of B"

Homework Equations

The Attempt at a Solution

It seems true to me. Could it be that B has more molecular translational, rational, vibrational, electronic energies? but then wouldn't t be higher?
also i thought U was a function of T.

U is a function of n and T.

AM