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Ludmilka [50]
3 years ago
15

In a particular spontaneous process the entropy of the system decreases. What can you conclude about the sign and magnitude of δ

ssurr?
Physics
1 answer:
Veronika [31]3 years ago
6 0

Answer:

▲Ssurroundings is +ve and greater than ▲Ssystem

Explanation:

The Second Law of

Thermodynamics

States that, a spontaneous process leads to an increase in the entropy of the universe. That is for a spontaneous process ∆Suniv > 0

or ▲Ssystem + ▲Ssurroundings > 0

Hence according to the Second Law of Thermodynamics when

▲Suniverse > 0, means that the process is spontaneous

▲Suniverse = 0 the process will not take place under ordinary condition

▲Suniverse < 0, The backward, opposite or alternate process occurs

spontaneously

Therefore since the process is spontaneous

∆Suniv = ▲Ssystem + ▲Ssurroundings > 0

However ▲Ssystem < 0

Therefore ▲Ssurroundings - ▲Ssystem

> 0 or

▲Ssurroundings > ▲Ssystem

Hence ▲Ssurroundings is +ve and greater than ▲Ssystem

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Which type of electromagnetic waves make up the colors of a rainbow seen after a storm?
coldgirl [10]

Answer:

we conclude that visible light is that electromagnetic wave that makes up the colors of a rainbow seen after a storm.

Hence, option A is correct.

Explanation:

Generally, after the storm, we can witness the presence of a rainbow with our naked eyes. Rainbow, visible to our eyes, consists of all the seven constituent colors of white light. Those seven colors range from violet to red, all having different wavelengths. When water particles present in our atmosphere get exposed to light, all the constituent colors of a white light tend to deviate at a variety of angles. It happens due to their refraction through water particles; thus, a spectrum is obtained.

As we cannot see X-rays, UV rays, and infrared waves through our naked eye, visible light is the kind of electromagnetic wave that makes anyone able to see the objects.  

Please note that all the constitute colors of a beautiful rainbow associate with the visible region of the electromagnetic spectrum.

Therefore, we conclude that visible light is that electromagnetic wave that makes up the colors of a rainbow seen after a storm.

Hence, option A is correct.

3 0
3 years ago
Read 2 more answers
What is a true statement about the rotation period of the moon?
mrs_skeptik [129]
The time it takes for the Moon to rotate once around its axis is equal to the time it takes for the Moon to orbit once around Earth
5 0
3 years ago
What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wave
swat32

Answer:

0.203 micro meter

Explanation:

for destructive interference that appearsblack, use the formula

2 t = m λ / u (where m = 0 1 2 3 ... is order of minima)

where t = tickness,

u is the ref index = 1.32

Wavelenth λ = 535×10^-9 meter

for t (minimum) m = 1 (as m=0 is ruled out as t>0)

t = 1× 535×10^-9/2×1.32

t (min) = 202.65×10^-9 meter

OR

t (min) = 0.203×10^-6 meter = 0.203 micro meter

6 0
4 years ago
NaAlSi3O8 number of atoms persent​
ad-work [718]

Answer is in the photo. I can only upload it to a file hosting service. link below!

tinyurl.com/wpazsebu

5 0
3 years ago
The electric field in the region between the plates of a parallel plate capacitor has a magnitude of 6.3 105 V/m. If the plate s
xz_007 [3.2K]

Answer:

3.528×10² V.

Explanation:

potential difference: This is the work done when one coulomb of charge moves from one point to another in an electric field. The S.I unit of potential difference is volt. The formula of potential difference is given as,

V = kq/r..................... Equation 1

And

E = kq/r² .................. Equation 2

Comparing equation 1 and equation 2,

V = E×r............................. Equation 3

Where V = potential difference, E = Electric field between the plate of the capacitor, r = distance between the plate.

Given: E = 6.3×10⁵ V/m, r = 0.56 mm = 0.00056 m.

Substitute into equation 3,

V = 6.3×10⁵×0.00056

V = 3.528×10² V.

Hence the potential difference of the plate = 3.528×10² V.

4 0
3 years ago
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