Why electrons don't spiral into atomic nuclei is best explained by their?

1 answer:

7 0

Electrons are negatively charged particles while protons that are found in the nucleus are positively charged. In the natural scheme of things, positive and negative charge produces an attractive force that pulls one particle towards the other. However, based on Rutherford's model of an atom, which is the planetary model that conclusively suggests that electrons revolve around the nucleus, such attraction between the two opposing particles creates an electromagnetic force that enables electrons to move around the positive nucleus thus preventing the electrons from spiraling towards it.

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The equilibrium constant, Kc, for the following reaction is 0.967 at 650 K. 2NH3(g) N2(g) 3H2(g) When a sufficiently large sampl

AlekseyPX

Answer: Concentration of $NH_3$ in the equilibrium mixture is 0.31 M

Explanation:

Equilibrium concentration of $H_2$ = 0.729 M

The given balanced equilibrium reaction is,

$2NH_3(g)\rightleftharpoons N_2(g)+3H_2(g)$

Initial conc. x 0 0

At eqm. conc. (x-2y) M (y) M (3y) M

The expression for equilibrium constant for this reaction will be:

3y = 0.729 M

y = 0.243 M

$K_c=\frac{[y]\times [3y]^3}{[x-2y]^2}$

Now put all the given values in this expression, we get :

$K_c=\frac{0.243\times (0.729)^3}{(x-2\times 0.243)^2}$

$0.967=\frac{0.243\times (0.729)^3}{(x-2\times 0.243)^2}$

$x=0.80$

concentration of $NH_3$ in the equilibrium mixture = $0.80-2\times 0.243=0.31$

Thus concentration of $NH_3$ in the equilibrium mixture is 0.31 M

3 0

3 years ago

The process of blank is when two atoms combine together form a larger atom releasing energy

Bogdan [553]

NUCLEAR FUSION :):):):)

3 0

3 years ago

Which statement best describes a physical change?

Inga [223]

Answer: 3 Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same

Explanation:

Physical change mainly physical properties of a substance while the chemical changes remain unchanged. Once there is a change to the chemistry of the substance, this would be classified as a chemical change.