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Water is supercooled to - 4^(@)C. The en...

Water is supercooled to `- 4^(@)C`. The enthalpy `(H)` is

A

more than ice at `- 4^(@)C`

B

less than ice at `- 4^(@)C`

C

same as ice at `-4^(@)C`

D

same as ice at `0^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
A
When water is supercooled to `- 4^(@)C`, energy heat is released. However, during theis process, no ice is formed. Thus, the amount of energy released in the water `rarr` ice transition is missing. Consequently, the enthalpy `(H)` is more than ice at `- 4^(@)C`,
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