What is the purpose of graphics in scientific articles

Chemistry

1 answer:

kow [346]3 years ago

4 0

Answer:

Graphics can sometimes convey more information in a brief amount of space than an author can explain in a paragraph.

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Given the following reactions, what is the overall enthalpy change for the following reaction?

Elenna [48]

Answer:

-176.0 kJ/mol

Explanation:

Let's consider the following balanced reaction.

NH₃(g) + HCl(g) → NH₄Cl(s)

We can calculate the standard enthalpy change for the reaction (ΔH°rxn) using the following expression.

ΔH°rxn = 1 mol × ΔH°f(NH₄Cl(s)) - 1 mol × ΔH°f(NH₃(g)) - 1 mol × ΔH°f(HCl(g))

ΔH°rxn = 1 mol × (-314.4 kJ/mol) - 1 mol × (-46.1 kJ/mol) - 1 mol × (-92.3 kJ/mol)

ΔH°rxn = -176.0 kJ/mol

8 0

3 years ago

A sample of neon occupies a volume of 375 ml at stp. What will be the volume of neon If the pressure is reduced to 90.0 KPA?

Kryger [21]

I think the right answer is 422 L crossed fingers

7 0

3 years ago

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How would you apply the scientific method to the question, "Which type of shampoo makes my hair look shinier? Shampoo A or Shamp

vampirchik [111]

Aim of the experiment :To test between Shampoo A and Shampoo B and to find out which shampoo is more effective in making my hair look shinier.

Procedure, On day 1, I would apply Shampoo A on my dirty hair. Leave it on my hair for 5 minutes then wash it off with cold water.

Observation and Data Collection: After my hair is dry I would observe it under natural light and also take a picture of my hair so that I have record keeping of the shiny luster of the hair.

On day 2, I would repeat the same steps with Shampoo B.

Analysis: At the end of day two I would then compare the pictures of my hair to determine which shampoo between A and B was more effective in giving my hair a shiny luster.

7 0

4 years ago

A gas has experienced a small increase in volume but has maintained the same pressure and number of moles. According to the idea

krek1111 [17]

Answer:

If a gas has experienced a small increase in volume but has maintained the same pressure and number of moles, the temperature of the gas will DROP.

Explanation:

According to Boyle’s law of ideal gases, volume and temperature of a gas is inversely related, as long as the pressure is kept constant;

P₁V₁/T₁ = P₂V₂/T₂

Therefore, if the volume of the gas increases, the temperature will definitely decrease due to the inverse relationship. The gas will get cooler.

Learn More:

For more on Boyle's Law check out;