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Q: What is the temperature at which the fluid starts boiling at atmospheric pressure?
  • A. Fusion heat
  • B. Heat dissipated
  • C. Boiling point
  • D. Melting point
Correct Answer: Option C - Boiling occurs when the vapour pressure reaches or exceed to surrounding pressure. At standard atmospheric pressure (1 atm = 0.101325 MPa), water boils at 100⁰ C.
C. Boiling occurs when the vapour pressure reaches or exceed to surrounding pressure. At standard atmospheric pressure (1 atm = 0.101325 MPa), water boils at 100⁰ C.

Explanations:

Boiling occurs when the vapour pressure reaches or exceed to surrounding pressure. At standard atmospheric pressure (1 atm = 0.101325 MPa), water boils at 100⁰ C.