The INCORRECT statement about the characteristics of critical point of a pure substance is that
the ice directly converts from solid phase to vapor phase
Direct solid-to-vapour conversion is sublimation, unrelated to the liquid–vapour critical point. At the critical point saturated liquid and vapour become identical.
Important Questions from Phase Change of a Pure Substance
- Which of the following exists in a P-V diagram for water?
What the region (2) in the p-V diagram given below is called?
The saturation temperature of steam with increase in pressure increases _________.
A rigid tank contains 10 kg of water at 90°C. If 8 kg of water is in liquid form and the rest is in vapour form, what will be the volume of the tank?
[Given: At 90°C, saturation pressure is 70 kPa , specific volume at saturated liquid state = 0.001 m3/kg , specific volume at saturated vapour state = 2.36 m3/kg.]
- The triple point on a T-s diagram is _________.
