Classify the following reaction:2h2o 2h2 o2
2 answers:
The classified form of the following reaction should looke like that :
. WHat about the name of such reaction, I am pretty sure that it is called <span>decomposition. I bet you have the same in the option list, but next time check it carefully.</span>
Explanation:
When a substance or compound dissociates into two or more new compounds then this type of chemical reaction is known as decomposition reaction.
For example,
Here, water dissociates into hydrogen and oxygen molecules.
Thus, we can conclude that the given reaction is a decomposition reaction.
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Answer: The entropy change of the surroundings will be -17.7 J/K mol.
Explanation: The enthalpy of vapourization for 1 mole of acetone is 31.3 kJ/mol
Amount of Acetone given = 10.8 g
Number of moles is calculated by using the formula:
Molar mass of acetone = 58 g/mol
Number of moles =
If 1 mole of acetone has 32.3 kJ/mol of enthalpy, then
0.1862 moles will have =
To calculate the entropy change for the system, we use the formula:
Temperature = 56.2°C = (273 + 56.2)K = 329.2K
Putting values in above equation, we get
(Conversion Factor: 1 kJ = 1000J)
At Boiling point, the liquid phase and gaseous phase of acetone are in equilibrium. Hence,