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3 years ago

How is it possible for the volume of gas to change but the volume of a solid cannot?

Chemistry

1 answer:

valina [46]3 years ago

6 0

Gas has the ability to spread out, while solids are more compressed and cannot spread out.

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Phosgene is formed from carbon monoxide and chlorine. At 611 oC, Kc is approximately 16.5 M-1 or L/mol. Calculate Kp (in atm-1)

defon

Answer:

Kp is 0.228/atm

Explanation:

This is the reaction:

CO + Cl<u>₂</u> → CCl₂O

1 mol of carbon monoxide and 1 mol of chlorine produce 1 mol of phosgene.

Formula for Kp which derivates from Kc is:

Kp = Kc (R.T)ⁿᵇ ⁻ ⁿᵃ

Δп = nb (moles in the products) - nₐ(moles in the reactants)

Δп = 1 - 2 = -1

T is T° in K → T°C + 273 = 611°C +273 = 884K

R → Universal constant gas → 0.082 L.atm/mol.K

We replace the data: Kp = 16.5 L/mol (0.082 . 884K)⁻¹ → 0.228/atm

5 0

4 years ago

We are now finished learning about the various units in forensics. Using what we have learned in class all year and this week’s

stiks02 [169]

Pathology is the main branch of forensics in order to solve a criminal justice case, although other branches may also be important.

<h3>What are forensics sciences?</h3>

Forensic sciences refer to the scientific fields aimed at solving justice cases such as DNA sample forensics.

Other fields in forensics science include:

forensic botany
forensic archeology
forensic physics

In conclusion, pathology is the main branch of forensics in order to solve a criminal justice case, although other branches may also be important.

Learn more about forensic sciences here:

brainly.com/question/3049628

#SPJ1

5 0

2 years ago

Give two sources of energy that can cause ocean waves

STALIN [3.7K]

Explanation:

Thermal energy from the sun's heat, and mechanical energy from previous tides and waves. Oceans are one of the largest solar collectors.

7 0

3 years ago

This is the overall reaction of a mercury oxide dry cell:

Vesnalui [34]

<u>Answer:</u>

Hg gets reduced

(Look at the equation; notice how Hg loses O while Zn gains it)

3 0

2 years ago

In the coal-gasification process, carbon monoxide is converted to carbon dioxide via the following reaction: CO (g) + H2O (g) ⇌

Oksana_A [137]

Answer: Equilibrium constant is 0.70.

Explanation:

Initial moles of $CO$ = 0.35 mole

Volume of container = 1 L

Initial concentration of $CO=\frac{moles}{volume}=\frac{0.35moles}{1L}=0.35M$

Initial moles of $H_2O$ = 0.40 mole

Volume of container = 1 L

Initial concentration of $H_2O=\frac{moles}{volume}=\frac{0.40moles}{1L}=0.40M$

equilibrium concentration of $CO=\frac{moles}{volume}=\frac{0.18moles}{1L}=0.18M$ [/tex]

The given balanced equilibrium reaction is,

$CO(g)+H_2O(g)\rightleftharpoons CO_2(g)+H_2(g)$

Initial conc. 0.35 M 0.40M 0 0

At eqm. conc. (0.35-x) M (0.40-x) M (x) M (x) M

The expression for equilibrium constant for this reaction will be,

$K_c=\frac{[CO_2]\times [H_2O]}{[CO]\times [H_2O]}$

$K_c=\frac{x\times x}{(0.40-x)(0.35-x)}$

we are given : (0.35-x)= 0.18

x = 0.17

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

$K_c=\frac{0.17\times 0.17}{(0.40-0.17)(0.35-0.17)}$

$K_c=0.70$

Thus the value of the equilibrium constant is 0.70.

5 0

3 years ago