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30 Sep 2019

The enthalpy of formation of water is –285.8 kJ/mol. what can be inferred from this statement?

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Collen Von
Collen VonLv2
2 Mar 2019
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Related questions

Below are the statements about entropy. Identify the correct statement.

  1. There is no change in entropy for a reversible process

  2. Entropy for an irreversible process always decreases

  3. The unit of entropy is KJ/mol

  4. Entropy of an isolated system always decreases

 

Among the following statements, which statement finds the logical consequence of the second law of thermodynamics?

  1. This law states that the entropy of an isolated system always increases or equal to zero but can never decrease

  2. This law is a relationship between the energy and the internal energy of a system

  3. This law states that entropy attains a constant value at absolute zero temperature

  4. This law states enthalpy of a closed system is a point function

Suppose 10 mg of L-deprenyl is diluted in 10 ml water (density 1.0g/ml) and the solution is to be used in the sugary solution approach. What is the mole fraction of the drug? What is the molarity of the drug (mol/L?

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