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3 years ago

All of the following can increase the rate of chemical reaction EXCEPT:

1 answer:

5 0

Except catalyst because catalyst typically speed up a reaction by reducing the activation energy or changing the reaction mechanism.

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Can someone please help me

Lilit [14]

It is A. Barium

Explanation: I did that already

3 0

3 years ago

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

Following the Napoleonic Wars , the congress of vienna took steps meant to:

Slav-nsk [51]

Answer:

Prevent any European country from growing much stronger than its neighbors.

Explanation:

4 0

3 years ago

The atomic mass of an imaginary element X is 30.7377 amu. Element X has three isotopes. One isotope has an isotopic mass of 30.5

ryzh [129]

Answer:

wuhwwisbsjsbsisjsbsjsjiw

Explanation:

bhajwjbw wjsjw bwuebe e

8 0

3 years ago

How does a sex cell differ from a body cell

Delvig [45]

Sex cells have one set of chromosomes; body cells have two.

I hope this helps you.

5 0

3 years ago