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avanturin [10]
3 years ago
9

Measurements show that the energy of a mixture of gaseous reactants increases by during a certain chemical reaction, which is ca

rried out at a constant pressure. Furthermore, by carefully monitoring the volume change it is determined that of work is done on the mixture during the reaction. Calculate the change in energy of the gas mixture during the reaction. Round your answer to 2 significant digits. Is the reaction exothermic or endothermic?
Chemistry
1 answer:
TEA [102]3 years ago
8 0
<h2>Endothermic and Exothermic</h2>

Explanation:

  • An exothermic response discharges heat and endothermic absorbs to heat
  • The whole of the enthalpies of the reactants is more prominent than the product, the response will be exothermic
  • In the product that the items side has a bigger enthalpy, the reaction is endothermic
  • An exothermic method  is one that emits heat. This heat is transferred to the environment
  • An endothermic reactions is one in which heat must be provided to the system from the environment
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Answer:

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Explanation:

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number represents a quantity without an associated physical dimension, so it is considered a pure number that allows describing a physical characteristic without an explicit dimension or unit of expression. Avogadro's number applies to any substance.

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amount of moles=\frac{5.22*10^{22}atoms * 1 mole}{6.023*10^{23}atoms}

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<u><em>The amount of moles of Fe in 5.22*10²² atoms of Fe is 0.0867.</em></u>

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