Discussion
The correct combination of phases in the one-component H2O phase diagram, as given below, is
Answer: B
The correct combination is α - ice; β - water; γ - vapour.
On a P-T diagram the solid occupies the low-temperature, high-pressure region (α), the liquid the higher-temperature, high-pressure region (β), and the vapour the low-pressure region below both (γ). The three boundaries meet at the triple point.
The diagram also shows water's anomaly: the ice-water boundary leans backwards (negative slope), because ice is less dense than water, so raising the pressure lowers the melting point. Every other assignment puts vapour at high pressure or ice at high temperature, which contradicts this layout.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development