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

Author Question: A 648-g empty iron kettle is put on a stove. How much heat. in joules. must it absorb to raise its ... (Read 331 times)

ss2343

  • Hero Member
  • *****
  • Posts: 548
on: Jul 29, 2018
A 648-g empty iron kettle is put on a stove. How much heat. in joules. must it absorb to raise its temperature from to (The specific heat for iron is 113 cal/kg  C, 1 cal = 4.190 J)
 
  A) 6740 J
  B) 11,300 J
  C) 1610 J
  D) 16,100 J

Question 2

If we use 67 W of power to heat 148 g of water, how long will it take to raise the temperature of the water from 15C to 25C? The specific heat of water is 4190 J/kg  K.
 
  A) 93 s
  B) 5.3 s
  C) 22 s
  D) 114 h


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Alyson.hiatt@yahoo.com

  • Sr. Member
  • ****
  • Posts: 354
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: A


ss2343

  • Hero Member
  • *****
  • Posts: 548
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


Alyson.hiatt@yahoo.com

  • Sr. Member
  • ****
  • Posts: 354
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Translational regulation of ferritin mRNA by the iron regulatory protein (IRP) Translational regulation of ferritin mRNA by the iron regulatory protein (IRP)
Iron Deficiency Symptoms Iron Deficiency Symptoms
Iron in the Sun’s Atmosphere Iron in the Sun’s Atmosphere
Concentric double-pipe heat exchanger for counter-current flow Concentric double-pipe heat exchanger for counter-current flow
Active solar technologies use for heat, cool, and produce electricity Active solar technologies use for heat, cool, and produce electricity
Warning Signs of Heat Exhaustion and Heat Stroke Warning Signs of Heat Exhaustion and Heat Stroke
Video: Lactation and Breast Feeding

For a complete list of videos, visit our video library