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

Author Question: A cup of coffee is enclosed on all sides in an insulated container 1/2 cm thick in the shape of a ... (Read 485 times)

olgavictoria

  • Hero Member
  • *****
  • Posts: 528
on: Jul 28, 2018
A cup of coffee is enclosed on all sides in an insulated container 1/2 cm thick in the shape of a cube 10 cm on a side. The temperature of the coffee is 95C, and the temperature of the surroundings is 21C. Find the rate of heat loss (in J/s) due to conduction if the thermal conductivity of the cup is 2  10-4 cal/scmC.
 a. 62
  b. 74
  c. 230
  d. 160
  e. 12

Question 2

If CP for an ideal gas is 35.4 J/molK, which of the following is CV for this gas?
 a. 12.5 J/molK
  b. 20.8 J/molK
  c. 29.1 J/molK
  d. 27.1 J/molK
  e. 43.4 J/molK


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cdmart10

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

D


olgavictoria

  • Member
  • Posts: 528
Reply 2 on: Jul 28, 2018
Wow, this really help

upturnedfurball

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Structure and function of the thick and thin filaments. Structure and function of the thick and thin filaments.
Vertebral compression Fractures of the spine (vertebra) can cause severe ”band-like” pain that radia Vertebral compression Fractures of the spine (vertebra) can cause severe ”band-like” pain that radia
Applying a time strip to the IV container. Applying a time strip to the IV container.
Trig Example finding angles+length of sides Trig Example finding angles+length of sides
Stand behind and use two hands to knead both sides of upper trapezius. Stand behind and use two hands to knead both sides of upper trapezius.
Spacecraft optimum geometrical shape Spacecraft optimum geometrical shape
Video: New DNA Strand Replication

For a complete list of videos, visit our video library