When the Gas Enclosed Beneath the Piston Shown in the Figure

question 39

Multiple Choice

When the gas enclosed beneath the piston shown in the figure receives 2170 J of heat, Q, from its surroundings, it performs 2840 J of work in raising the piston. What is the change in the internal energy of the gas?

• A)+670 J
• B)-670 J
• C)-5010 J
• D)+5010 J
• E)zero joules

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Definitions:

Variable Overhead Efficiency Variance

The difference between the actual variable overhead incurred and the standard cost of variable overhead that should have been incurred based on the efficiency of operations.

Favorable

An accounting term referring to actual results being better than projected or budgeted figures, often used in the context of variances.

Unfavorable

A term often used in finance and accounting to describe a variance or outcome that leads to a worse financial position than expected.

Volume Variance

The difference between the budgeted volume of production or sales and the actual volume, indicating whether a business performed better or worse than expected.