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 535 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
:D TYSM

LVPMS

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

The skulls of living haplorhines differ from those of strepsirhines by having large brains, an enclo The skulls of living haplorhines differ from those of strepsirhines by having large brains, an enclo
This red gasoline container holds about 30 gallons of gasoline and is used to fill vehicles used ... This red gasoline container holds about 30 gallons of gasoline and is used to fill vehicles used ...
Slide thumbs over forehead and down sides of nose. (A) Using no oil or lotion, place thumbs in ... Slide thumbs over forehead and down sides of nose. (A) Using no oil or lotion, place thumbs in ...
A solid concrete wall 4.0 m by 2.4 m and 30 cm thick, with a thermal conductivit A solid concrete wall 4.0 m by 2.4 m and 30 cm thick, with a thermal conductivit
An organizational specialist is hired as a consultant to a company planning to open a coffee ... An organizational specialist is hired as a consultant to a company planning to open a coffee ...
Spacecraft optimum geometrical shape Spacecraft optimum geometrical shape
Video: Stroke volume - afterload definition & hypertension

For a complete list of videos, visit our video library