McqMate
| Q. |
Which of the following is a super-cooled liquid? |
| A. | Ice-cream |
| B. | Ammonia |
| C. | Glass |
| D. | Wood |
| Answer» C. Glass | |
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Explanation: Glass is considered to be a super- cooled liquid due to its lack of a first-order phase transition where certain thermodynamic variables such as volume, entropy and enthalpy are discontinuous through the glass transition. range. However, the glass transition may be described as analogous to a second-order phase transition where the intensive thermodynamic variables such as the thermal expansivity and heat capacity are discontinuous. |
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