Why can some electric appliances be immersed in water without damage

1 answer:

3 0

Some electric appliances can be immersed in water without damage because they are well insulated. The electrical systems are well insulated and tightly sealed so that when they are immersed in water, no water can get into the electrical parts.

You might be interested in

Write the condensed ground-state electron configurations of these transition metal ions, and state which are paramagnetic:

serg [7]

The ground-state electron configurations of $Cd^{2+}$ transition metal ions are diamagnetic [Kr] $4d^{10}$ . The ion is diamagnetic because there all electrons are paired.

<h3>What is Diamagnetic?</h3>

A magnetic field repels diamagnetic materials because it induces an opposing magnetic field in them when it is applied, which produces a repelling force.
In contrast, a magnetic field draws paramagnetic and ferromagnetic materials together.
All materials experience the quantum mechanical phenomenon known as diamagnetism, which is the only source of magnetism in a material.
The magnetic dipoles within paramagnetic and ferromagnetic materials exert an attracting force that outweighs the modest diamagnetic force.
Diamagnetic materials have a magnetic permeability that is less than vacuum, or 0.
Although superconductors behave as strong diamagnets, diamagnetism is often a modest effect that can only be observed by sophisticated laboratory equipment.

To learn more about Diamagnetic with the given link

brainly.com/question/15462756

#SPJ4

8 0

2 years ago

Steam reforming of methane ( CH4 ) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the sta

goldfiish [28.3K]

Answer:

1.9

Explanation:

The reaction that occurs is:

CH₄(g) + 2H₂O(g) ⇄ CO₂(g) + 4H₂(g)

The equilibrium is achieved when the velocity of the formation of the reactants is equal to the velocity of the formation of the reactants, thus the concentrations remain equal. It can be characterized by the concentration equilibrium constant (Kc), or by the pressure equilibrium constant (Kp).

Both of them depend on the activity of the substances, but for Kc, it is substituted by the concentration, and at Kp, by the partial pressure. The activity of solids and pure liquids (as water) is equal to 1, so they are not used in the calculus. Kp is calculated only the gas substances.

So, to know the Kc, we need to now the equilibrium concentrations, so let's make an equilibrium chart:

CH₄(g) + 2H₂O(g) ⇄ CO₂(g) + 4H₂(g)

20 mol 10 mol 0 0 Initial

-x -2x +x +4x Reacts (stoichiometry is 1:2:1:4)

20-x 10-2x x 4x Equilibrium

4x = 18

x = 4.5 mol

So, the amount of the gases are:

nCH₄ = 20 - 4.5 = 15.5 mol

nH₂O = 10 - 2*4.5 = 1 mol

nCO₂ = 4.5 mol

nH₂ = 18 mol

The concentration is the number of moles divided by the volume (125 L), so:

[CH₄] = 15.5/125 = 0.124 M

[H₂O] = 1/125 = 0.008 M

[CO₂] = 4.5/125 = 0.036 M

[H₂] = 18/125 = 0.144 M

Kc is the ratio of the multiplication of the concentration of the products by the multiplication of the concentration of the reactants, each concentration elevated by the substance coefficient, so:

$Kc = \frac{[H_2]^4*[CO_2]}{[H_2O]^2*[CH_4]}$