Which of the Following Thermochemical Equations Is Used to Represent $\rightarrow$

question 55

Multiple Choice

Which of the following thermochemical equations is used to represent the reaction of H₂(g) with O₂(g) to make H₂O(ℓ) giving off 572 kJ?

• A) H₂(g) + O₂(g) \(\rightarrow\)H₂O(ℓ) ; \(\Delta\) H = −572 kJ
• B) H₂(g) + O₂(g) \(\rightarrow\) 2H₂O(ℓ) ; \(\Delta\)H = +572 kJ
• C) H₂(g) + O₂(g) \(\rightarrow\)2H₂O(ℓ) ; \(\Delta\)H = −286 kJ
• D) 2H₂(g) + O₂(g) \(\rightarrow\)2H₂O(ℓ) ; \(\Delta\)H = −572 kJ
• E) 2H₂(g) + 2O₂(g) \(\rightarrow\) 4H₂O(ℓ) ; \(\Delta\)H = −286 kJ

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Definitions:

Process Costing

An accounting method used for homogeneous products, where costs are accumulated over a period and then allocated to units produced.

Conversion Cost

The combination of direct labor and manufacturing overhead costs, representing the costs to convert raw materials into finished products.

Conversion Costs

Costs required to convert raw materials into finished products, typically including direct labor and manufacturing overhead.

FIFO Method

First-In, First-Out method; an inventory valuation method where goods purchased or produced first are sold or used first.