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3 years ago

Which of these can be determined based on the knowledge about climate?

Chemistry

1 answer:

Andrews [41]3 years ago

6 0

Answer:

D. The others are based on weather not climate.

Explanation:

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Diego has learned that the Earth wobbles on its axis in a certain pattern. He predicts that this pattern will repeat every 20,00

nataly862011 [7]

Observe the movment of other planets would be your answer

8 0

3 years ago

Read 2 more answers

4. The following occurs when heat energy is removed: Gas --A-> Liquid-B--> Solid.

Misha Larkins [42]

Answer: The phase change for A and B respectively is condensation, freezing.

Explanation:

A process in which gaseous state of a substance converts into liquid state is called condensation.

For example, conversion of steam into water.

A process in which liquid state of a substance converts into solid state is called freezing.

For example, conversion of liquid water into ice.

Thus, we can conclude that the phase change for A and B respectively is condensation and freezing.

6 0

3 years ago

In the important industrial process for producing ammonia (the Haber Process), the overall reaction is:

irina [24]

Answer:

- 50.2 kJ

Explanation:

From the data given, the heat released per 2.0 moles of NH₃ is - 100.4 kJ.

The negative sign means that the reaction is exothermic and the energy is released.

<em>So, the ΔH in kJ of heat released per mole of NH₃ formed is (100.4 kJ/2) = - 50.2 kJ.</em>

4 0

3 years ago

HELP SOMEONE PLEASE I WILL GIVE BRAINLIST I NEED IT NOW PLZ! LOOK AT THE IMAGE ABOVE TO ANSWER

MAVERICK [17]

Answer:

its endothermic .

because your using a cooling process instead of a heating process if it was a heating process it would be exothermic

4 0

3 years ago

Calculate ΔGrxn at 298 K under the conditions shown below for the following reaction.

algol13

Answer : The value of $\Delta G_{rxn}$ is -24.9 kJ/mol

Explanation :

First we have to calculate the value of 'Q'.

The given balanced chemical reaction is,

$Fe_2O_3(s)+3CO(g)\rightarrow 2Fe(s)+3CO_2(g)$

The expression for reaction quotient will be :

$Q=\frac{(p_{CO_2})^3}{(p_{CO})^3}$

In this expression, only gaseous or aqueous states are includes and pure liquid or solid states are omitted.

Now put all the given values in this expression, we get

$Q=\frac{(2.1)^3}{(1.4)^2}$

$Q=3.375$

Now we have to calculate the value of $\Delta G_{rxn}$ .

The formula used for $\Delta G_{rxn}$ is:

$\Delta G_{rxn}=\Delta G^o+RT\ln Q$ ............(1)

where,

$\Delta G_{rxn}$ = Gibbs free energy for the reaction = ?

$\Delta G_^o$ = standard Gibbs free energy = -28.0 kJ/mol

R = gas constant = $8.314\times 10^{-3}kJ/mole.K$

T = temperature = 298 K

Q = reaction quotient = 3.375

Now put all the given values in the above formula 1, we get:

$\Delta G_{rxn}=(-28.0kJ/mol)+[(8.314\times 10^{-3}kJ/mole.K)\times (298K)\times \ln (3.375)$

$\Delta G_{rxn}=-24.9kJ/mol$

Therefore, the value of $\Delta G_{rxn}$ is -24.9 kJ/mol

5 0

3 years ago