Use the Following Diagram to Answer the Next Problem

question 50

Multiple Choice

Use the following diagram to answer the next problem. An ideal heat engine uses 0.01 mol of gas and operates between a hot reservoir at
T_H = 400 K and cold reservoir at T_L = 300 K, in a cycle from a→b→c→d→a. From a→b the gas undergoes an isothermal expansion, changing its volume from Va to 2.5Va. From b→c, the pressure is reduced at a constant volume. From c→d, the gas undergoes an isothermal compression, and from d→a, the pressure is increased at a constant volume until the gas is back at the original condition at a.

-How much work is obtained from the engine in each cycle?

• A)22.9 J
• B)30.5 J
• C)7.62 J
• D)8.31 J
• E)0.917 J

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Definitions:

Activity Rate

An activity rate is the cost driver rate used in activity-based costing to allocate overhead costs to products or services.

Activity-based Costing

An accounting method that assigns costs to products or services based on the activities and resources that go into their production, providing more accurate cost information.

Resource Consumption

The use of resources (such as raw materials, energy, or labor) by a process, project, or activity, typically measured to manage efficiency and costs.

Activity-based Costing

A costing methodology that assigns costs to products or services based on the resources they consume.