First Law of Thermodynamics Video Lessons

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Problem: Consider the two diagrams below.Would similar relationships hold for the work involved in each process? Why?  Match the words in the left column to the appropriate blanks in the sentences on the right

FREE Expert Solution

Recall that:

Hrxn=Hf,products-Hf,reactants

  • Enthalpy → can be computed based on initial and final states 
    • State function → property of a system that does not depend on the path taken
  • Work →  depends on the path taken
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Problem Details

Consider the two diagrams below.
(i) A is the increase in enthalpy from an initial low state to a high state in one step. B is an increase from the initial low state to an intermediate state, followed by C, which increases from that intermediate state to the final high state. (ii) X is the increase in enthalpy from an initial low state to a high state in one step. Y is a decrease in enthalpy from that high state to an intermediate state; Z is an increase from the initial state to that same intermediate state.

Would similar relationships hold for the work involved in each process? Why?  Match the words in the left column to the appropriate blanks in the sentences on the right


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