Regarding the operating principle of a...

Question 1 / 205eccef9cbacbc34ba4d458c4

Question 1 of 205eccef9cbacbc34ba4d458c4

Regarding the operating principle of a reverse-osmosis type freshwater generator, what statement is true?

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Question 1 of 20

5eccef9cbacbc34ba4d458c4

Regarding the operating principle of a reverse-osmosis type freshwater generator, what statement is true?

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🔍 Key Concepts

• Osmosis vs. reverse osmosis – in which direction does water naturally move through a semi‑permeable membrane? • Concentration gradient – which side is ‘strong’ and which is ‘weak’ (saltwater vs. freshwater)? • Effect of applied external pressure – what are you trying to force through the membrane in a desalination plant: salt or water?

💭 Think About

• In natural osmosis (no external pressure), does water move from high salinity to low salinity, or from low salinity to high salinity? How does reverse osmosis change that? • In a freshwater generator, what is the desired product on the low‑salinity side – salt or fresh water? Which side should you apply pressure to if you want to push that product through the membrane? • Can dissolved salt ions pass through a semi‑permeable membrane as easily as water molecules, or is one of them largely retained? How does that help you eliminate some options?

✅ Before You Answer

• Identify which side (strong or weak concentration) represents seawater and which represents freshwater/product water. • Decide whether the membrane mainly lets water molecules or salt ions pass through. • Confirm that in reverse osmosis you apply pressure on the side where you want to overcome natural osmosis and drive the desired flow through the membrane.

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Question 1 of 20

Regarding the operating principle of a reverse-osmosis type freshwater generator, what statement is true?

External pressure is applied to the side of strong concentration forcing salt through the semi-permeable membrane to the side of weak concentration.

External pressure is applied to the side of weak concentration forcing salt through the semi-permeable membrane to the side of strong concentration.

External pressure is applied to the side of weak concentration forcing freshwater through the semi-permeable membrane to the side of strong concentration.

External pressure is applied to the side of strong concentration forcing freshwater through the semi-permeable membrane to the side of weak concentration.

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Question 1 / 205eccef9cbacbc34ba4d458c4

Question 1 of 205eccef9cbacbc34ba4d458c4

Regarding the operating principle of a reverse-osmosis type freshwater generator, what statement is true?

Back

Question 1 of 20

5eccef9cbacbc34ba4d458c4

Regarding the operating principle of a reverse-osmosis type freshwater generator, what statement is true?

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

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