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Q: What is the physical state of water at 257⁰ Celsius?
  • A. Plasma
  • B. Gaseous
  • C. Solid
  • D. Liquid
Correct Answer: Option B - The physical state of water at 257⁰ C is a gaseous state. As we know that the boiling point of water is 100⁰ C. After attaining the boiling temperature the water will be in a gaseous state as it change into vapour.
B. The physical state of water at 257⁰ C is a gaseous state. As we know that the boiling point of water is 100⁰ C. After attaining the boiling temperature the water will be in a gaseous state as it change into vapour.

Explanations:

The physical state of water at 257⁰ C is a gaseous state. As we know that the boiling point of water is 100⁰ C. After attaining the boiling temperature the water will be in a gaseous state as it change into vapour.