When a dark grey solid element is heated, it changes directly into a purple gas without melting. What is this phase change called?

Answer as guest — Start Free Practice Test to earn Practice PointsHow to earn pointsAsk a question+3Answer a question+1Someone answers yours+1Your Q gets upvoted+1Pioneer bonus (first 5)+5, ask questions & climb the leaderboard!

A Boiling
B Evaporation
C Melting
D Sublimation

Show answer and explanation

Answer: D. Sublimation

Answer: D) Sublimation
Explanation: Sublimation is the endothermic transition where a substance passes directly from the solid phase to the gas phase without forming an intermediate liquid state (common in iodine or dry ice).

Answering after opening this box earns no Practice Points.

Rules for asking and answering

When a dark grey solid element is heated, it changes directly into a purple gas without melting. What is this phase change called?

More questions like this