Type a keyword to start searching...

Use ⌘K or Ctrl+K to search from anywhere
CHEMCO Exit Exam • Set 14 Question 19 of 30

Sublimation is the transition of a substance directly from

✓

Direct Answer

Option D: Solid to the gas phase & Vice versa

Sublimation is the direct phase transition of a substance from a solid to a gas, and vice versa (deposition), without passing through the liquid phase. Understanding this is important for handling certain cargoes or residues that may sublime, impacting tank cleaning procedures or gas freeing operations (P&A Manual).

All Options

A
Liquid to the gas phase & Vice versa
B
Solid to the Liquid phase & Vice versa
C
Gas to the super heated gas phase & Vice versa
D
Solid to the gas phase & Vice versa (Correct Answer)

Detailed Explanation & Context

Sublimation is the direct phase transition of a substance from a solid to a gas, and vice versa (deposition), without passing through the liquid phase. Understanding this is important for handling certain cargoes or residues that may sublime, impacting tank cleaning procedures or gas freeing operations (P&A Manual).

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Chemical Tanker Cargo Operations (CHEMCO).

Advertisement

Practice Full CHEMCO Set 14

Test yourself with 30 interactive questions, live timer, and instant score.

Launch Practice Simulator →

Question Discussion & Notes

0

Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.

Leave a Comment / Clarification

By posting, you agree to our Terms & Moderation Policy.

Loading mariner discussions...