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konstantin123 [22]
2 years ago
7

What is the binding energy of an electron in a metal whose threshold frequency for photoelectrons is?

Chemistry
1 answer:
jeka57 [31]2 years ago
6 0

The binding energy of electrons in a metal is 193 kJ mol ^-1 .

<h3>What is binding energy?</h3>

The minimal amount of energy needed in physics and chemistry to separate a particle from a system of particles or to break a system of particles down into its component pieces is known as the binding energy.  While the word separation energy is used in nuclear physics, the former meaning is more common in condensed matter physics, atomic physics, and chemistry.

The energy level of a bound system is often lower than that of its unbound components. Relativity theory states that a drop in a system's total energy of E leads to a corresponding decrease in its total mass of m, where

Δmc² = E.

To learn more about binding energy from the given link:

brainly.com/question/23020604

#SPJ4

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If the number of moles of gas is doubled at constant temperature and volume, the pressure of the gas:__________
Vladimir79 [104]

Answer:

answer is b

use pv=nRT

p directly proportional to moles(n)

p1/p2=n1/n2

p/p2=n/2n

p2=2p

4 0
4 years ago
What happens if you rub a balloon against wool and put it against water dripping from a cup
Goryan [66]

Answer:

The water bends due to the static electricity on the balloon.

Explanation:

The static electricity you built up by rubbing it against the balloon attracts the stream of water, bending it towards the comb or balloon like magic!

Negatively charged particles called electrons jump the wool to the balloon as they rub together, the comb now has extra electrons and is negatively charged. The water features both positive and negatively charged particles and is neutral. Positive and negative charges are attracted to each other so when you move the negatively charged balloon towards the stream, it attracts the water's positively charged particles and the stream bends!

8 0
3 years ago
Identify the parts of the equation by dragging each label below to the correct arrow on the diagram. Drag the items on the left
Natalka [10]

The missing labels are:

  • CuCO₃(s), H₂SO₄(aq): reactants.
  • +: plus sign.
  • CuSO₄(aq), H₂O(l), CO₂(g): products.
  • (s): solid.
  • (aq): aqueous.
  • (l): liquid.
  • (g): gaseous.

<h3>What is a chemical equation?</h3>

It is a way to represent a chemical reaction.

Let's consider the following chemical equation.

CuCO₃(s) + H₂SO₄(aq) →  CuSO₄(aq) + H₂O(l) + CO₂(g)

The missing labels are:

  • CuCO₃(s), H₂SO₄(aq): reactants. They are on the left side of the equation.
  • +: plus sign. It separates substances.
  • CuSO₄(aq), H₂O(l), CO₂(g): products. They are on the right side of the equation.
  • (s): solid.
  • (aq): aqueous.
  • (l): liquid.
  • (g): gaseous.

Learn more about chemical equations here: brainly.com/question/26227625

#SPJ1

6 0
2 years ago
Phosphorus p4 burns in oxygen to form diphosphorus pentoxide what is the balanced chemical equation representing this chemical r
ahrayia [7]

Answer:

P₄ + 5O₂ → 2P₂O₅

Explanation:

Phosphorus burn in the presence of air and produced diphosphorus pentoxide.

Chemical equation:

P₄ + O₂ → P₂O₅

Balanced chemical equation:

P₄ + 5O₂ → 2P₂O₅

Equation is balanced because there are four phosphorus atoms ans ten oxygen atoms in both side of equation.

Coefficient with reactant and product:

P₄         1

O₂        5

P₂O₅    2

7 0
3 years ago
Iwsk3eidwujfdujeudcwix vvfedsxdwsx
Sedaia [141]

Answer: :)

Explanation:

7 0
2 years ago
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