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andrew-mc [135]
3 years ago
10

Is it possible to transfer heat from a cold reservoir to a hot reservoir?

Chemistry
2 answers:
tankabanditka [31]3 years ago
8 0

Answer is: B.) Yes, if work is done, this transfer process can take place.

For example,  air conditioner involves a cyclic process that transfers heat from a cold reservoir to a hot reservoir, but with use of electricity.

Thermal conductuction is the transfer of heat through physical contact. Thermal conduction is the transfer of heat by microscopic collisions of particles. Heat spontaneously flows from a hotter to a colder body.

The process of heat conduction depends on four basic factors: the temperature gradient, the cross section of the materials involved, their path length and the properties of those materials.

VladimirAG [237]3 years ago
8 0

<u>Yes, it is very possible, if work is done, transferring heat from a cold reservoir to a hot reservoir can take place</u>. This implies the correct answer is B.

A good example, in this case, is an air conditioner. Air conditional entails a cyclist process in which heat is transferred from a cold reservoir to a hot reservoir using electricity. Also, in the process of heat transfer, the air conditioner generates more heat.

<h2>Further Explanation</h2>

The transfer of heat in this case is via thermal conduction. It involves the transfer of heat by collisions of particles microscopically. It also involves electrons movement in a body.

The collided particles such as atoms, electrons, and molecules transfer microscopic kinetic and potential energy that is disorganized.

However, the disorganized potential energy and microscopic kinetic are together known as internal energy.  

In other words, heat transfer through conduction involves direct contact between molecules and atoms.

The process of heat transfer via conduction simply depends on the four major factors:

  • The temperature gradient
  • The cross-sections of the materials involved in the process
  • The path length of the material involved
  • The conductive properties of the materials involved
  • Therefore, it is very possible, if work is done to transfer heat from a cold reservoir to a hot reservoir

LEARN MORE:

  • Is it possible to transfer heat from a cold reservoir to a hot reservoir?  brainly.com/question/2455585
  • heat transfer mechanism  brainly.com/question/13433948

KEYWORDS:

  • heat
  • transfer
  • atoms
  • molecules
  • hot reservoir
  • cold reservoir
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Answer:

It shows only the strength of seismic waves that were produced.

Explanation:

6 0
3 years ago
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If an isotope of an element has 40 neutrons and a mass number of 79, how many electrons must it have?
34kurt

Answer: 39 electrons

Explanation: Subtract 79 by 40 to get the atomic number (amount of protons) which is 39. The number of electrons must be the same as the number of protons if it's not an ionic compound so the amount of electrons is the same amount of protons.

5 0
3 years ago
The specific heat of a certain type of metal is 0.128J/(g.°C). What is the final temperature if 305 J of hear is added to 28.8 g
klasskru [66]

Answer: Temperature final = 103 °C

Explanation: To solve for final temperature we use the equation of heat:

Q= mc∆T

Next derive the equation to find final temperature

Q = mc(T final - T initial)

Q / mc = T final - T initial

Transpose T initial and change the sign so that T final will be left.

T final = Q / mc + T initial

Substitute the values:

T final = 305 J / 28.8 g x 0.128 J/(g°C)

= 305 J / 3.6864 J/°C

= 82.7 + 20.0°C

= 103 °C final temperature.

8 0
3 years ago
A 0.69-g sample of lime (CaO) is dissolved in enough water to make 1535 mL of solution. Calculate the pH of of the solution.
Marizza181 [45]

Answer:

pH = 12.2

Explanation:

Given data:

Mass of lime = 0.69 g

Volume = 1535 mL (1535 / 1000 = 1.535 L)

pH of solution = ?

Solution:

First of all we will determine the molarity.

Molarity = moles of solute / volume in litter

Number of moles = mass / molar mass

Number of moles = 0.69 g / 56.1 g/mol

Number of moles = 0.0123 mol

Molarity = moles of solute / volume in litter

Molarity = 0.0123 mol / 1.535 L

Molarity =  0.008 M

One mole of CaO neutralize two mole of OH⁻.

0.008 M×2 = 0.016 M

[OH⁻] = 0.016 M

pOH = -log [OH⁻]

pOH = [0.016]

pOH = 1.8

14 = pH +pOH

pH = 14 - pOH

pH = 14-1.8

pH = 12.2

4 0
3 years ago
How did Socrates influence the history of the atom?
aliya0001 [1]

Answer:

Since Socrates didn't leave any written works, we can only learn from his disciple Plato. Plato wrote that Socrates believed in an atomic theory, just not like the one we believe now. We can assume that both Plato and Socrates believed that atoms were geometric forms that were all made up of triangles.

They believed in 4 elements, so we can say that their atomic theory was based on a periodic table made up of:

  • fire (tetrahedron)
  • air (octahedron)
  • water (icosahedron)
  • earth (cube)

I guess that their major influence was that all elements could be broken down into smaller parts or atoms, in this case some type of triangle.

4 0
3 years ago
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