Question

When using charles law the units of temperature?

Answer 1

As per Charle's law we can say that if pressure remains constant then

by ideal gas equation we have

$PV = nRT$

$V = \frac{nR}{P} T$

here

$\frac{nR}{P} = constant$

so

$V = CT$

here

$\frac{V_1}{V_2} = \frac{T_1}{T_2}$

So here temperature must be in SI units

So the unit of temperature must be KELVIN (K)