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zalisa [80]
3 years ago
13

..

Chemistry
2 answers:
My name is Ann [436]3 years ago
7 0

Answer:

b is the right answer of the following terms

FrozenT [24]3 years ago
5 0

Answer:

The correct option is b

Explanation:

During chemical equilibrium, when ΔH is positive, this means the forward reaction is an endothermic reaction but when ΔH is negative, this means the forward reaction is an exothermic reaction. An increase in temperature have different effects on these types of reaction.

An increase in temperature when ΔH is negative causes the equilibrium to shift backward causing more reactants to be formed and when ΔH is positive, an increase in temperature causes more products to be formed.  

The question shows the ΔH of the reaction is -188 KJ hence the forward reaction is an exothermic reaction and an increase in temperature (High temperature) will favour the formation of more reactants and not favour the formation of the product SO₃.

NOTE: An increase in pressure (since the reactants are both gases), removal of product as it is formed (decreasing SO₃) and increasing the concentration of the reactant(s) (increasing SO₂) all favour the forward reaction hence will lead to the formation of more product (SO₃).

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sdas [7]

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3 years ago
What<br>was the initial volume of the hydrogen in cm3?​
svetlana [45]

Answer:

255.51cm3

Explanation:

Data obtained from the question include:

V1 (initial volume) =?

T1 (initial temperature) = 50°C = 50 + 273 = 323K

T2 (final temperature) = - 5°C = - 5 + 237 = 268K

V2 (final volume) = 212cm3

Using the Charles' law equation V1/T1 = V2/T2, the initial volume of the gas can be obtained as follow:

V1/T1 = V2/T2

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V1 = (323 x 212)/268

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Therefore, the initial volume of the gas is 255.51cm3

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