Multiple choice

Ocean thermal plants can operate only when the temperature difference between water at the surface and water at the depth up to 2 km is

  1. more than 293 K

  2. equal to 280 K

  3. less than 280 K

  4. less than 293 K

  5. -
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct answer. Ocean thermal plants can operate only when the temperature difference between water at the surface and water at the depths up to 2 km is more than 293 K or 20o C, which is required to boil liquid ammonia and the vapours run the turbine.

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