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umka21 [38]
3 years ago
3

When light from one source, X, strikes a metal, electrons are ejected. When light from another source, Y, strikes the same metal

, electrons are not ejected. Which best explains why this occurs? Light from source X has a higher intensity than light from source Y. Light from source X has a lower intensity than light from source Y. Photons of light from source X carry more energy than photons of light from source Y. Photons of light from source X carry less energy than photons of light from source Y.
Chemistry
1 answer:
kondor19780726 [428]3 years ago
7 0

Answer:

Photons of light from source X carry more energy than photons of light from source Y

Explanation:

According to Einstein's photoelectric equation, the kinetic energy of the emitted photoelectron depends on the energy of the incident photon and the work function of the metal.

For photoelectrons to be ejected from a metal surface, the energy of incident photon must be greater than the work function of the metal. If not, no electron is ejected.

The energy of photon X must be greater than the work function of the metal while the energy of photon Y is less than the work function of the metal. This brings us to the conclusion that the energy of photon X must be greater than that of photon Y.

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A student is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. At which location
disa [49]

Answer:

Far right

Explanation:

The qualities indicated here are of the element Sulphur (S) and any element of same qualities i.e color pale yellow, nature solid, electrical conductivity none, should be placed at far right corner of the periodic table or position 3 mentioned in the attached picture.

Hope it help!

3 0
3 years ago
Read 2 more answers
For the following reaction:
vlada-n [284]

Answer:

Nitrogen is the limiting reactant, and  

3.74

grams of ammonia is formed.

Explanation:

We have the familiar Haber process equation...

N

2

(

g

)

+

3

H

2

(

g

)

⇌

2

N

H

3

(

g

)

Since the mole ratio of  

N

2

to  

H

2

is  

1

:

3

, then for every mole of nitrogen, we would need three moles of hydrogen.

Explanation:

4 0
3 years ago
What does cp stand for in chemistry?
Evgesh-ka [11]
Cp is Constant Pressure

PS: Brainlist Answer plZ
4 0
3 years ago
What can be produced by splitting unraniam 235
Ainat [17]

It splits into two equal nuclei of approx. equal mass.

7 0
3 years ago
How many mass of chlorine molecule are found in 5 x 10^22 molecules of chlorine gas?​
kompoz [17]
Answer;
Mass in gram/molecular mass=no.of molecule of Cl2 gas/Avogadro’s number(NA) - - - - - - - - -(1)
Here,
Molecular mass of cl2=35.5*2=71
No.of cl2 molecule=5*10^22
Avogadro’s number(NA)=6.032*10^23
Now,substituting these all value in equation one,we get,
Mass in gram =(no.of molecule)/NA)*molecular mass
Or,Mass in gram =(5*10^22/6.023*10^23)*71
Or,Mass in gram = 5.89gm.Ans
8 0
3 years ago
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