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3 years ago

What does heat, enthalpy, entropy and free energy all have in common

1 answer:

4 0

Answer: Free energy combined enthalpy and entropy into a single value. Gibbs’s free energy is the energy associated with a chemical reaction that can do useful work. It equals the enthalpy minus the product of temperature and entropy of the system.

Explanation:

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Why is it important to dispose of wastes from nuclear power plants carefully? A) The wastes cause the greenhouse effect. B) The

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I would say its B. very sorry if I am wrong.

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3 years ago

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100 POINTS & BRAINLIEST !!!! PLEASE HELP

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Carbon, C, P Block, 2, 6, 12.0107u. 6 protons, 6 electrons, 6 neutrons

Helium, He, S Block, 1, 2, 4.0026u, 2 protons, 2 electrons, 2 neutrons

Germanium, Ge, P Block, 4, 32, 72.64u, 32 protons, 32 electrons, 41 neutrons

Oxygen, O, P Block, 2, 8, 16u, 8 protons, 8 electrons, 8 neutrons

Scandium, Sc, D Block, 4, 21, 44.9559u, 21 protons, 21 electrons, 24 neutrons

Tellurium, Te, P Block, 5, 52, 127.60u, 52 protons, 52 electrons, 76 neutrons

Hydrogen, H, S Block, 1, 1, 1.008u, 1 proton, 1 electron, 0 neutrons

Iron, Fe, D Block, 4, 26, 55.845u, 26 protons, 26 electrons, 30 neutrons

Beryllium, Be, S Block, 2, 4, 9.012u, 4 protons, 4 electrons, 5 neutrons

Vanadium, V, D Block, 4, 23, 50.942u, 23 protons, 23 electrons, 28 neutrons

Silver, Ag, D Block, 5, 47, 108u, 47 protons, 47 electrons, 61 neutrons

Gallium, Ga, P Block, 4, 31, 69.723u, 31 protons, 31 electrons, 39 neutrons

Bromine, Br, P Block, 4, 35, 79.904u, 35 protons, 35 electrons, 45 neutrons

Fluorine, F, P Block, 2, 9, 18.998u, 9 protons, 9 electrons, 10 neutrons

Manganese, Mn, D Block, 4, 25, 54.938u, 25 protons, 25 electrons, 30 neutrons

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3 years ago

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Which phase of matter is the rarest in the solar system

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Answer:

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Explanation:

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Answer:

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3 years ago

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What is the percent yield of a reaction in which 47.5 g tungsten (VI) oxide (WO3) reacts with excess hydrogen gas to produce met

Katarina [22]

Answer:

The percent yield of a reaction is 85.04%

Explanation:

$:WO_3+3H_2\rightarrow W+3H_2O$

Mass of $WO_3$ = 47.5g

Molar mass of $WO_3$ = 232 g/mole

Molar mass of $H_2O$ = 18 g/mole

Volume of water obtained from the reaction , V= 9.40mL

Mass of water = m = Experimental yield of water

Density of water = d = 1.00 g/mL

$M=d\times V = 1.00 g/mL\times 9.40 mL=9.40 g$

Moles of tungsten(VI) oxide = $\frac{47.5 g}{232 g/mol}=0.2047 mol$

According to recation 1 mole of tungsten(VI) oxide gives 3 moles of water, then 0.2047 moles of tungsten(VI) oxide will give:

$\frac{3}{1}\times 0.2047 mol=0.6141 mol$

Mass of 0.6141 moles of water:

0.6141 mol × 18 g/mol = 11.054 g

To calculate the percentage yield of reaction , we use the equation:

% yield = { $\frac{Experimental yield}{theoretical yield} \times 100$

$\frac{9.40}{11.054} \times 100\\\\= 85.04$

The percent yield of a reaction is 85.04%

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