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fenix001 [56]
4 years ago
7

When the pH value of a solution is changed from 2

Chemistry
1 answer:
inna [77]4 years ago
6 0

increases my factor of 10

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For the reaction below, the enthalpy change is ΔH = –566 kJ/mol. Increasing the temperature of the system will cause which of th
Lapatulllka [165]

Answer:

The partial pressure of CO₂ will decrease.

Explanation:

The reaction:

2CO (g) + O₂ (g) ⇄ 2CO₂ (g) has a ΔH = –566 kJ/mol. As ΔH<0, the reaction is exothermic.

Le Chatelier's principle says that if a system in chemical equilibrium is subjected to a disturbance it tends to change in a way that opposes this disturbance.

In this case, with increasing of the temperature, the system will produce less heat, doing the equilibrium shifts to the left.

Thus, the partial pressure of both CO and O₂ will increase. And<em> partial pressure of CO₂ will decrease.</em>

I hope it helps!

4 0
3 years ago
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A solution in which 50 grams of solute is dissolved in 250 grams of solution has a concentration of blank percent.
Stella [2.4K]

Answer:

20%

Explanation:

w=(solute)/(solution)

w = 50g/250g = 0.2

6 0
4 years ago
At 500 degree C, F_2 gas is stable and does not dissociate, but at 840 degree C, some dissociation occurs: F_2 (g) 2 F(g). A fla
bazaltina [42]

Answer:

2.73 is the equilibrium constant for the dissociation of F_2 gas at 840 degree Celsius.

Explanation:

F_2(g)\rightleftharpoons 2F(g)

Initial

0.600 atm    0

Equilibrium

(0.600 atm - p)        2p

Total pressure at equilibrium = P = 0.984 atm

P= 0.600 atm - p)+2p=0.984 atm

p = 0.384 atm

Partial pressure of the F_2 gas , p_{f_2}= (0.600 atm - 0.384 atm)=0.216 atm

Partial pressure of the F gas, p_{f} = 2(0.384 atm)=0.768 atm

K_p=\frac{(p_{F})^2}{p_{F_2}}

K_p=\frac{(0.768 atm)^2}{0.216 atm}=2.73

2.73 is the equilibrium constant for the dissociation of F_2 gas at 840 degree Celsius.

7 0
4 years ago
Which is not a physical property of water? weak adhesion with glass strong cohesion strong surface tension ability to move up th
olga2289 [7]
Ability to move up through thin tunes because a physical property is something you can observe about the matter. Out of all of them this one does not fit.
4 0
3 years ago
ʕ•ᴥ•ʔ Which type of reaction occurs between an acid and a base and results in the formation of a salt and water? ʕ•ᴥ•ʔ
Nataliya [291]
The answer would be D. because when an acid and base mix the start to cancel each other out causing it to neutralize
3 0
4 years ago
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