P2O5 is Hygroscopic powder which sublimes at:
Correct answer: B. 360 Degree Celsius
- A. 260 Degree Celsius
- B. 360 Degree Celsius
- C. 630 Degree Celsius
- D. 690 Degree Celsius
Explanation
It's a fact. P2O5 is a white, hygroscopic powder that readily absorbs water from the air. It has a very high melting point of 360°C and sublimes at this temperature. Sublimation is the process by which a solid directly transforms into a gas without passing through the liquid phase.At temperatures above 360°C, P2O5 can decompose to form phosphorus pentoxide vapor and oxygen gas. This reaction is endothermic, meaning that it absorbs heat from the surroundings.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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