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2 years ago

What thermodynamic quantities are used to define Gibbs free energy?

Chemistry

1 answer:

Andrew [12]2 years ago

6 0

Enthalpy of the system minus the product of the temperature times the entropy of the system.

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Please help me answer these 3 questions

aleksandr82 [10.1K]

Explanation:

Photosynthesis is the process by which green plants manufacture their food using carbon dioxide and water in the presence of sunlight.

It is expressed using the equation below;

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

reactants products

1. Compounds consumed are carbon dioxide and water.

2. Product is glucose and oxygen.

3. Most organism obtain their nourishment directly and indirectly from photosynthetic activities.

Plants are the producers of food in the ecosystem. If the process of photosynthesis does not occur, there is no way other organisms will obtain their own nourishment.

3 0

3 years ago

Q. Calculate the number of atoms in each of the following (i) 52 moles of Ar (ii) 52 u of He (iii) 52 g of He

andreyandreev [35.5K]

$\huge\mathfrak\red{❥︎AnSweR:-}$

(i) 1 mole of Ar =6.022×10^23

atoms of Ar

52 mol of Ar=52×6.022×10 ^23

atoms of Ar =3.131×10 ^25 atoms of Ar

(ii) Atomic mass of He = 4amu

4amu is the mass of He atoms = 1

Therefore 52 amu is the mass of He atoms=0.25×52=13 atoms of He

(iii) Gram atomic mass of He = 4g

4g of He contains =6.022×10 ^23

atoms

Therefore 52 g of He contains=

6.022×10 ^23/4×52 =7.83×10 ^24 atoms

7 0

3 years ago

At which point does a planet move most slowly in its orbit , at aphelion or perihelion

SVEN [57.7K]

Answer:

aphelion

Explanation:

A planet moves with constantly changing speed as it moves about its orbit. The fastest a planet moves is at perihelion (closest) and the slowest is at aphelion (farthest).

7 0

2 years ago

This set contains the spectra of benzil, biphenyl, and bibenzyl, three compounds used in the melting point experiment. Using you

murzikaleks [220]

Answer:

Spectrum 1- Biphenyl

Spectrum 2 - Benzil

Spectrum 3 - Bibenzyl

Explanation:

For Benzil:

The Spectrum - 2 shows this compound.The C=O and C-H bond stretching observed at following values.

$C=O \,at\,1657cm^{-1}$

$C=H \,at\,3063cm^{-1}$

For Biphenyl:

Spectrum - 1 shows this compound.

There are stretching vibrations from $3061, 3032\,and \,1597 -1428cm^{1}$ due to C-H stretching and C-C stretching respectively of aromatic ring only.