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using PV=nRT for these types of problems, you usually assume the number of moles (n) remains the same, R is a constant, and in these questions you usually have a closed system with a constant volume. if you don't have T, you'd be solving for more than one unknown, which is impossible. so most likely no.
In the scope of this class, when asked to calculate the pressure of a substance, you will be given a temperature and a relative concentration of this substance and will be expected to know how to manipulate the Ideal Gas LAw equation in order to solve the relation between concentration and pressure of a substance.
if you are dealing with all pressures though then yes it is!! Like if you use K subP then you can find the partial pressure even without temperature because no concentrations are involved so no equation with concentration or temperature is needed! just solve in the same way you do with K subC
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