This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Every second at Niagara Falls, some 5000 m3 of water falls a distance of 50 m. What is the increase ... (Read 63 times)

ashley

  • Hero Member
  • *****
  • Posts: 584
on: Jul 28, 2018
Every second at Niagara Falls, some 5000 m3 of water falls a distance of 50 m. What is the increase in entropy per second due to the falling water? (Assume a 20C environment).

Question 2

In a nuclear power plant, the reactor produces 500C steam that is used to power the steam turbines which generate 1 500 MW of electrical power. The cooling tower eliminates the waste heat at 50C. If the efficiency of the plant were that of a Carnot engine, at what rate would waste heat be vented to the atmosphere?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

k.lashomb

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Jul 28, 2018
Answer to Question 1

8360 kJ/K

Answer to Question 2

1080 MW


ashley

  • Member
  • Posts: 584
Reply 2 on: Jul 28, 2018
Wow, this really help

brbarasa

  • Member
  • Posts: 308
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

A Need for Improved Water-Use Efficiency in Plants A Need for Improved Water-Use Efficiency in Plants
Total body water (TBW) Total body water (TBW)
How to find the distance of any line segment How to find the distance of any line segment
Glacial deposits overlain by marine carbonates formed in very warm water Glacial deposits overlain by marine carbonates formed in very warm water
Fat Soluble and Water Soluble Fat-soluble vitamins Fat Soluble and Water Soluble Fat-soluble vitamins
Running Water Running Water
Video: Hemoglobin's affinity with oxygen - carbon dioxide, temperature and bisphosphoglycerate (BPG)

For a complete list of videos, visit our video library