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

Author Question: 100 grams of liquid nitrogen at 77 K is stirred into a beaker containing 200 grams of 5C water. If ... (Read 151 times)

danielfitts88

  • Hero Member
  • *****
  • Posts: 535
on: Jul 28, 2018
100 grams of liquid nitrogen at 77 K is stirred into a beaker containing 200 grams of 5C water. If the nitrogen leaves the solution as soon as it turns to gas, how much water freezes? (The heat of evaporation of nitrogen is 6.09 cal/gram and the heat of fusion of water is 80 cal/gram.)

Question 2

In braking an automobile, the friction between the brake drums and brake shoes converts the car's kinetic energy into heat. If a 1 500-kg automobile traveling at 30 m/s brakes to a halt, how much does the temperature rise in each of the four 8.0-kg brake drums? (The specific heat of each iron brake drum is 448 J/kgC).


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dreamfighter72

  • Sr. Member
  • ****
  • Posts: 355
Reply #1 on: Jul 28, 2018
Answer to Question 1

none

Answer to Question 2

47C


danielfitts88

  • Member
  • Posts: 535
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

raenoj

  • Member
  • Posts: 340
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Hand Washing Using Soap and Water Hand Washing Using Soap and Water
water molecules water molecules
Jane Goodall first observed Gombe chimpanzees chewing leaves, then dipping the chewed-up “wadge” int Jane Goodall first observed Gombe chimpanzees chewing leaves, then dipping the chewed-up “wadge” int
Rinse the soap off completely from fingertips to elbows. Water flows off the forearms near the ... Rinse the soap off completely from fingertips to elbows. Water flows off the forearms near the ...
A good disinfecting solution you can make yourself consists of 1 part bleach to 10 parts water. A good disinfecting solution you can make yourself consists of 1 part bleach to 10 parts water.
Carnivorous plants of the genus Nepenthes grow in nitrogen-poor soil Carnivorous plants of the genus Nepenthes grow in nitrogen-poor soil
Video: Energy sources - types

For a complete list of videos, visit our video library