Ethylene oxide has a lower explosive limit...

Question 1 / 205eccef9ebacbc34ba4d465c7

Question 1 of 205eccef9ebacbc34ba4d465c7

Ethylene oxide has a lower explosive limit of 2.0% and an upper explosive limit of 100% by volume in air. This means __________.

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Question 1 of 20

5eccef9ebacbc34ba4d465c7

Ethylene oxide has a lower explosive limit of 2.0% and an upper explosive limit of 100% by volume in air. This means __________.

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🔍 Key Concepts

• Lower Explosive Limit (LEL) – the minimum concentration of a vapor in air that can ignite • Upper Explosive Limit (UEL) – the maximum concentration of a vapor in air that can ignite • What it means for a mixture to be too lean or too rich to burn

💭 Think About

• Think about what happens if the vapor concentration is below the LEL. Can it burn, or is it too lean? • Think about what happens if the vapor concentration is above the UEL. Can it burn, or is it too rich? • If the UEL is 100%, what does that say about whether a mixture can ever be too rich to burn?

✅ Before You Answer

• Be clear on the definitions of LEL (too lean) and UEL (too rich) and what ranges can actually ignite • Check which choices misunderstand what a combustible gas indicator actually measures and how its scale is usually expressed (often as % of LEL, not % by volume) • Eliminate any answer that suggests ignition is guaranteed whenever the substance is present, rather than only within the flammable range

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Question 1 of 20

Ethylene oxide has a lower explosive limit of 2.0% and an upper explosive limit of 100% by volume in air. This means __________.

there is no possible ethylene oxide concentration in air which is too lean to burn

there is no possible ethylene oxide concentration in air which is too rich to burn

an ethylene oxide spill always results in an explosion

a 2.0% concentration of ethylene oxide in air would give a reading of 2.0% on a combustible gas indicator

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Question 1 / 205eccef9ebacbc34ba4d465c7

Question 1 of 205eccef9ebacbc34ba4d465c7

Ethylene oxide has a lower explosive limit of 2.0% and an upper explosive limit of 100% by volume in air. This means __________.

Back

Question 1 of 20

5eccef9ebacbc34ba4d465c7

Ethylene oxide has a lower explosive limit of 2.0% and an upper explosive limit of 100% by volume in air. This means __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed