What is the value of the absolute zero of temperature on their temperature scale? — States of Matter and Gaseous State Chemistry Question

💡 Solution & Explanation

Let absolute zero on their scale be -T0 °N. Since PV_m is ∝ absolute temperature: (PV_m)1 / (PV_m)2 = T1 / T2 → 28 / 40 = (0 + T0) / (100 + T0) → 7 / 10 = T0 / (100 + T0) → 700 + 7 T0 = 10 T0 → 3 T0 = 700 → T0 = 233.33. Therefore, absolute zero is -233.33°N.