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Tatiana [17]
4 years ago
12

Coal, which is primarily carbon, can be converted to natural gas, primarily ch4, by the exothermic reaction:

Chemistry
1 answer:
Leno4ka [110]4 years ago
5 0
Unfortunately, your question is incomplete So, according to the attached picture of the complete question we will explain the answer:
according to the reaction equation:
C(s) + 2H2(g) ↔ CH4(g) ΔH° = -74.6KJ 
So the true answer will be D i and ii

- as by adding more C and it is a reactant so the reaction will go rightward to the product to decrease the C to achieve the equilibrium again, the movement of the reaction towards the products will make the CH4 increase

- and by decreasing the Heat and the heat here is as a product as the reaction is exothermic so by decreasing the heat the reaction will go toward the products to increase the heat and achieve the equilibrium again, and that also makes the CH4 increase as it is a product.
So the true answer is D i and ii as the attached photo 

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3 years ago
if excess nitrogen gas reacts with 600 cm³ of hydrogen gas at room conditions , calculate the maximum volume of ammonia produced
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Answer:

400 cm³ of ammonia, NH₃.

Explanation:

The balanced equation for the reaction is given below:

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From the balanced equation above,

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From the balanced equation above,

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3 years ago
What is the concentration of OH− and pOH in a 0.00072 M solution of Ba(OH)2 at 25 ∘C? Assume complete dissociation.
Mumz [18]

Given :

0.00072 M solution of Ba(OH)_2 at 25^oC .

To Find :

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Solution :

1 mole of Ba(OH)_2 gives 2 moles of OH^- ions .

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