49 points! Will mark brainliest!

Chemistry

2 answers:

Sholpan [36]3 years ago

8 0

1. Given the following equation: N2 (g) + 3 H2 (g) ↔ 2NH3 (g) ΔH = -92 kJ/mol

a. this reaction is exothermic as ΔH is -ve

b. the equilibrium will shift 2 the left if nitrogen gas is removed

c. the equilibrium shift 2 the right if the temperature is lowered

d. the equilibrium shift 2 the left if ammonia (NH3) is added

e. principle of thermodynamic potential or Gibbs energy is used to answer B-D

Licemer1 [7]3 years ago

6 0

e. I will answer the last one first - the equation describes a reversible reaction and the equilibrium is determined by the Le Châtelier's principle.

a. It is exothermic.

b. It will shift towards the reactants side (N2+H2).

c. It will shift towards the product side (NH3).

d. It will shift towards the reactants side (N2+H2).

You might be interested in

Compare rutherford's expected outcome of the gold-foil experiment with the actual outcome.

iragen [17]

Rutherford was one of the early scientists who worked on the atomic model. Before his discovery of the nucleus, the widely accepted theory was J.J Thomson's Plum Pudding Model. In this model, all the protons, electrons and neutrons are in the nucleus. But the electrons are more in number such that the electrons act as the 'pudding' and the proton and nucleus the 'plum'. This was Rutherford's hypothesis in his gold foil experiment. In order to test the Plum Pudding model, he hypothesized that when a beam of light is aimed at the atom, it would not diffract because the charges in the nucleus are well-distributed. However, his experiment disproved Thomson's model. Some light indeed passed through but a few was diffracted back to the source. He concluded that this was because there is a dense mass inside the atom called nucleus. Thus, from there on, he proposed the model that the electrons are orbiting around the nucleus.

6 0

3 years ago

how many moles of sodium are needed to react with sulfuric acid to produce 3.75 moles of sodium sulfate according to the followi

anastassius [24]

Hello!
<span>
You'll need to react 7,5 moles of Sodium with sulfuric acid to produce 3.75 moles of sodium sulfate
</span>
First of all, you need to balance the reaction. The balanced reaction is shown below (ensuring that the Law of Conservation of Mass is met on both sides):

2Na + H₂SO₄ → Na₂SO₄ + H₂

Now, all that you have to do is to use molar equivalences in this reaction applying the coefficients to calculate the moles of Sodium that you'll need:

$molesNa=3,75moles Na_{2} SO_4* \frac{2 moles Na}{1 mol Na_{2} SO_4} =7,5 moles Na$

Have a nice day!

5 0

3 years ago

Salinity is a measure of which of the following in water?

Lemur [1.5K]

The answer is dissolved salts

8 0

3 years ago

Read 2 more answers

Explain why the replacement of the glutamic acid by valine changes the way that molecules of b-globin interact with each other.

aleksandr82 [10.1K]

For the answer to the question above, <span>Hydrophobic regions and hydrophilic regions in the molecules of the b-globin. The replacement causes these hemoglobin molecules to be stickies which gives the cell its sickle shape.
I hope this helps. Have a nice day!</span>

3 0

3 years ago

- Write down Rutherford's atomic model with diagram .also write down defects of Rutherford's atomic model. - write down neil boh

anastassius [24]

this is the answer

sorry if the answer is wrong

5 0

3 years ago