Chemistry, asked by guru5734, 1 year ago

why does becl2 react with water to give acid solution give chemical reaction.

Answers

Answered by Grewal007
2

Answer:

its bcoz Beryllium chloride is stable in dry air, but absorbs moisture forming its tetrahydrate, BeCl2. 4H2O. It dissolves in water undergo hydrolysis and releasing hydrochloricacid.

Explanation:

Answered by dreamrob
0

becl2 react with water to give acid solution give chemical reaction because:

  • With two open p orbitals in BeCl2, the central Be atom is sp hybridised. BeCl2 hydrolyzes to weak base Be(OH)2 and strong acid HCl when one of the water molecule's two lone pairs of oxygen atoms assaults the unoccupied p orbital of Be. Therefore, in an aqueous solution, the concentration of H+ ions is greater than that of OH- ions. The solution turns acidic as a result.

BeCl2 + H2O -----> Be(OH)2 + 2 HCl

  • Accordingly, the reaction is acidic because it results in the production of hydrogen chloride, which is simply hydrochloric acid in solution. Because hydrolysis is an exothermic process, there will be a significant free energy change driving the reaction, and the Gibbs Free Energy for the change will have a significant negative value driving the change in thermodynamic terms. The Free Energy reduction provides a measurement of how spontaneously a chemical reaction occurs.
  • The free energy is related to the enthalpy change delta H, the entropy change delta S, and temperature T as follows:
  • ∆ G= ∆ H − T ∆ S
  • For a given delta H, a large increase in S will favour a particular reaction path. In the case of BeCl2 hydrolysis which gives off heat energy, implying that delta H is negative, the driving force is related to the temperature and entropy increases.
  • Large increases in S will favour a specific response path for a given delta H. The driving force is influenced by the temperature and entropy rises in the case of BeCl2 hydrolysis, which releases heat energy and suggests.

Hence, this is the reason behind becl2 react with water to give acid solution give chemical reaction

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