Canadian Entry To Practice (CETP) Practice Test

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Prepare for the Canadian Entry To Practice Test. Study with various question formats, including flashcards and multiple-choice questions, complete with hints and explanations. Ensure you're ready for your test!

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How many times heavier than air is propane vapor?

  1. 0.504

  2. 1.5

  3. 17

  4. 10

The correct answer is: 1.5

Propane vapor has a molecular weight that makes it approximately 1.5 times heavier than air. This measurement indicates that the density of propane vapor is greater than that of air, which is primarily a mix of nitrogen and oxygen. In practical terms, this means that in an environment where propane gas is present, it will tend to settle or accumulate in low areas rather than dissipating into the atmosphere. Understanding this property is crucial for safety protocols when handling propane, as its heavier-than-air characteristic can lead to hazardous situations in enclosed spaces or low-lying areas. The other values provided do not accurately represent the comparison of propane vapor density to that of air. A value of 0.504 would suggest that the vapor is lighter than air, while values of 17 and 10 imply that propane vapor is significantly heavier than it actually is, which misrepresents its physical properties.