In Which of the Following Processes Is H =

question 64

Multiple Choice

In which of the following processes is H = E ?

• A) Two moles of ammonia gas are cooled from 325°C to 300°C at 1.2 atm.
• B) One gram of water is vaporized at 100°C and 1 atm.
• C) Two moles of hydrogen iodide gas react to form hydrogen gas and iodine gas in a 40-L container.
• D) Calcium carbonate is heated to form calcium oxide and carbon dioxide in a container with variable volume.
• E) One mole of solid carbon dioxide sublimes to the gas phase.

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Definitions:

Standard Quantity

This represents the expected amount of materials or inputs needed to produce a unit of product under normal conditions.

Actual Output

Actual output is the factual quantity of goods or services produced within a specified time frame, representing productivity.

Standard Price

The predetermined cost assigned to materials, labor, or overhead for the purposes of budgeting and variance analysis.

Material Price Variance

The difference between the actual cost of direct materials and the expected (standard) cost, indicating budgetary performance.