1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Pie
2 years ago
14

Consider a gray and opaque surface at 0°c in an environment at 25°C. The surface has an emissivity of 0.8. if the radiation in

cident on the surface is 240 w/m^2 , The radiosity of this surface is?
Chemistry
1 answer:
valina [46]2 years ago
7 0

The radiosity of this surface is 299.95W/m².

<h3>Calculation :</h3>

Given, € 0.8

Ta=0°C 273K

For opaque body., T = 0

a+ p = 1

€ = a (Kirchoff's Law)

p = (1-E)

Radiosity = leaving energy from the surface

= px 240 +€σT4

= (1-E) × 240 +0.8 x 5.67 x 10-8 (2734)

= (1-0.8) × 240 +0.8 x 5.67 × 10-8 (2734)

= 299.95W/m²

So, now after doing the calculations we can say that the radiosity of the surface was 299.95W/m².

To know more about Radiosity please click here : brainly.com/question/14937321

#SPJ4

You might be interested in
Describe the makeup of Earth’s atmosphere. How do solids get into the air?​
Alex17521 [72]
Earth's atmosphere is 78% nitrogen, 21% oxygen, 0.9% argon, and 0.03% carbon dioxide with very small percentages of other elements. Our atmosphere also contains water vapor. In addition, Earth's atmosphere contains traces of dust particles, pollen, plant grains and other solid particles.
5 0
4 years ago
Read 2 more answers
Which is one way that earth’s atmosphere supports life?
ivolga24 [154]

Answer:

The atmosphere protects living things on earth from the sun's harmful ultraviolet radiation.

Explanation:

keeping the earth warm, the atmosphere contains gases that enable the "Greenhouse effect", (it means that they are able to trap the heat that is reflected from the surface of the earth.)

5 0
3 years ago
The size of earthquakes is usually measured using the moment magnitude scale, which is a measure of the energy released.
meriva

Answer:True

Explanation: Moment magnitude is used by the USGS- it is based on the total moment release of the earthquake. Moment is a product of the distance and the force. The moment magnitude scale gives an esitmate of the total energy released from the earthquake

3 0
3 years ago
Why is nucleus of an atom charged is negatively charged?
Damm [24]

Answer:

Charge is caused by a flow of electrons, since electrons are around the nucleus they can be lost or gained by atoms. When an atom gets charged, it gains a charge, that is, it gains an electron. Since electrons are negatively charged, when an atom gains one, it also becomes negatively charged.

3 0
3 years ago
93.0 grams of water to moles
Anuta_ua [19.1K]

Answer:

5.1622 mol This is the answer for your questions

4 0
2 years ago
Other questions:
  • A 75 g piece of gold (Au) at 1000 K is dropped into 200 g of H2O at 300K in an insulated container at 1 bar. Calculate the tempe
    13·1 answer
  • Melting can be best described as a process in which molecules?
    6·2 answers
  • Help me please :3 :3 :3 ;3
    15·2 answers
  • 2.A fisherman in a boat is drinking hot coffee. The large lake below his boat is full of cold water. Which statement is an accur
    5·1 answer
  • A solution is prepared using 0.125 glucose C6H12O6 is enough water to make 250 g of total solution the concentration of the solu
    7·2 answers
  • Write the balanced chemical equations of each reaction:
    9·1 answer
  • How come everytime my mom yells at me i feel myself drift more and more away from life
    10·2 answers
  • Một chất phóng xạ có chu kỳ bán huỷ là 10 năm, Hỏi bao nhiêu năm thì lượng phóng xạcòn 10%. Cho biết phản ứng phân hủy chất phón
    11·1 answer
  • 2H2 + o2 = 2 H2O <br> Number of moles of water
    12·2 answers
  • How are the properties of a compound related to those of the elements that comprise it.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!