How does producers get matter?

Can someone help me? I don't know the answer and I need a justification for why the correct answer is correct

pav-90 [236]

Answer:

(A) The value of Kc for this reaction increases as temperature increases, because the reaction is endothermic.

Step-by-step explanation:

N₂O₄ ⇌ 2NO₂

colourless reddish-brown

NO₂ is a reddish-brown gas, while N₂O₄ is colourless.

When you cooled the sample to 0 °C, the position of equilibrium shifted to form more N₂O₄, that is, it shifted to the left.

According to Le Châtelier's Principle, when a stress is applied to a system at equilibrium, the system will respond in a way that tends to relieve the stress.

You applied a stress: you removed heat from the system. It responded by shifting in the direction that produces more heat (to the left).

If you consider heat as part of the reaction, the equation must be

N₂O₄ + heat ⇌ 2NO₂

The reaction is endothermic.

Furthermore, since the position of equilibrium shifted in the direction of reactants, the equilibrium constant decreased.

The value of K decreases as the temperature decreases. If we say it the other way, the value of K increases as the temperature increases.

The correct answer is (A) The value of Kc for this reaction increases as temperature increases, because the reaction is endothermic.

(B) and (D) are wrong, because the reaction is endothermic.

(C) is wrong, because the value of Kc decreases as temperature decreases.

7 0

3 years ago

For the reaction

tensa zangetsu [6.8K]

Answer:

45.2g produce x mole of CH4. we are given the mass of methane. mass (CH4)=45.2g. molar mass (CH4) = 12+4 =16g/mol. Mole=mass. molar mass. mole=45.2. 16. mole=2.8mol. therefore, if 45.2g produce 2.8mol as 1 mole of methane, the water produced is 2(2.8) we Are multiplying by 2 because the water is having 2 moles water mole is 5.6mol

Explanation:

45.2g produce x mole of CH4. we are given the mass of methane. mass (CH4)=45.2g. molar mass (CH4) = 12+4 =16g/mol. Mole=mass. molar mass. mole=45.2. 16. mole=2.8mol. therefore, if 45.2g produce 2.8mol as 1 mole of methane, the water produced is 2(2.8) we Are multiplying by 2 because the water is having 2 moles water mole is 5.6mol

3 0

3 years ago

What is the difference between a conductor and an insulator?

USPshnik [31]

Answer:materials that impede the free flow of electrons from atom to atom and molecule to molecule.

6 0

2 years ago

Read 2 more answers

Read the descriptions below of two substances and an experiment on each. Decide whether the result of the experiment tells you t

inessss [21]

Answer:

Sample A - Mixture

Sample B - (can't decide)

Explanation:

We know a mixture as a sample that is made up of two or more substances. Based on the results from the experiment conducted on sample A, the sample is a mixture. Each colour that appeared on the paper represents one of the components of the mixture.

For Sample B, at a particular sharp temperature, the crystals begin to appear. That temperature at which the first crystal appears is actually the melting point of the solid. We were also told that only half of the clear liquid was crystallized meaning that other substances may still be contained in the remaining liquid. Crystallization is a separation technique that depends on differences in melting points of substances. We can't decide if the sample is pure because we have no further information about what happened to the remaining liquid. That would have told us if the liquid remaining was just the solvent used to dissolve B which could have also been evaporated to leave only the pure sample.

4 0

3 years ago

The volume of the ideal gas in the container is 9 m3. What would the volume be if four more blocks were placed on top of the lid

7nadin3 [17]

Answer;
4.5 m³

Solution:
The statement says that two blocks are present on a lid of a container with volume of 9 m³. The mass of lid is equal to the mass of two blocks. It means that initially there are four blocks (or four atm pressure) upon 9 m³ volume.

After that four more blocks are placed on the lid. Means the pressure is increased from 4 atm to 8 atm (2 atm of lid, 2 atm of old blocks, 4 atm of new four blocks).

So, Data generated is,

P₁ = 4 atm

V₁ = 9 m³

P₂ = 8 atm

V₂ = ?

According to Boyle's Law,

P₁ V₁ = P₂ V₂

Solving for V₂,
V₂ = P₁ V₁ / P₂

Putting values,
V₂ = (4 atm × 9 m³) ÷ 8 atm

V₂ = 4.5 m³

0 0

4 years ago