Can these linear pots be used for volume control?

I am planning to build one of the preamp/headphone amps from the diy store.
Was wondering if these linear pots would work as volume control or I really need a log pot?
These are 5K pots, and I have 6 of them. Not sure what else these are usefull for.h
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Such "conversion" is not more than a kludge,and heavily loads the stage driving it.
In this case it can show as low as 500 ohms or nearby at some settings, very difficult to drive.
Get proper Log pots, and the value required by circuit.