Given: Cu₂O(s)+ O₂(g) $\times$ 2CuO(s) $\quad$ $\Delta$ H° = -144 KJ
Cu₂O(s)

question 61

Multiple Choice

Given: Cu₂O(s) + O₂(g) $\times$ 2CuO(s) $\quad$$\Delta$ H° = -144 kJ
Cu₂O(s) $\times$ Cu(s) + CuO(s) $\quad$ $\quad$ $\quad$ $\quad$$\Delta$ H° = +11 kJ
Calculate the standard enthalpy of formation of CuO(s) .

• A)-166 kJ
• B)-299 kJ
• C)+299 kJ
• D)+155 kJ
• E)-155 kJ

Explain the usage and application of set screws in mechanical assemblies.

Know international and national standards and organizations relevant to mechanical engineering and threading.

Understand thread callouts and their components in technical specifications.

Familiarize with the processes and tools for creating internal threads.

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