It Required 88

question 78

Multiple Choice

It required 88.2 calories to heat 14.3 g of an unknown substance from 24°C to 175°C. What is the specific heat of the unknown?

• A) 0.245 cal /g·°C
• B) 0.317 cal /g·°C
• C) 0.0408 cal /g·°C
• D) none of these

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Definitions:

Sales Volume

The total quantity of goods or services sold by a company in a specific period.

Least-Squares Regression

A statistical approach that finds the optimal fitting line by reducing the sum of the squares of the discrepancies between the actual and forecasted values.

Variable Cost

Costs that vary directly with the level of production or sales volume, such as materials and direct labor.

Fixed Cost

Costs that do not vary with the level of production or sales, such as rent, salaries, and insurance premiums, providing stability in expense planning.