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

Author Question: A styrofoam container used as a picnic cooler contains a block of ice at 0C. If 225 grams of ice ... (Read 110 times)

EAugust

  • Hero Member
  • *****
  • Posts: 550
on: Jul 28, 2018
A styrofoam container used as a picnic cooler contains a block of ice at 0C. If 225 grams of ice melts in 1 hour, how much heat energy per second is passing through the walls of the container? (The heat of fusion of ice is 3.33  105 J/kg).

Question 2

How much water at 20C is needed to melt 1 kilogram of solid mercury at its melting point of -39C? (The heat of fusion of mercury is 2.8 cal/gram).


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Madisongo23

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 28, 2018
Answer to Question 1

20.8 J (per second)

Answer to Question 2

23.4 grams


EAugust

  • Hero Member
  • *****
  • Posts: 550
Reply #2 on: Jul 28, 2018
Thanks


Madisongo23

  • Sr. Member
  • ****
  • Posts: 325
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Heat Exchanger Block Diagram Feedforward Control Heat Exchanger Block Diagram Feedforward Control
A container with gasoline containing alcohol. Notice the separation line where the alcohol-water ... A container with gasoline containing alcohol. Notice the separation line where the alcohol-water ...
Coolant circulates through the water jackets in the engine block and cylinder head. Coolant circulates through the water jackets in the engine block and cylinder head.
Enzyme block in phenylketonuria (PKU). Enzyme block in phenylketonuria (PKU).
How many grams of CO2 can be made from reacting 78.1 g of O2 and 62.4 g of C4H10?2 C4H10 + 13 ... How many grams of CO2 can be made from reacting 78.1 g of O2 and 62.4 g of C4H10?2 C4H10 + 13 ...
How many grams of H2 gas are there in a 5.00-L cylinder at 4.00 × 103 mm Hg and 23°C? How many grams of H2 gas are there in a 5.00-L cylinder at 4.00 × 103 mm Hg and 23°C?
Video: Fertilization and Development

For a complete list of videos, visit our video library