The Heat of Combustion of Bituminous Coal Is 2 $\times$ 10⁴ J/g

question 125

Multiple Choice

The heat of combustion of bituminous coal is 2.50 $\times$ 10⁴ J/g.What quantity of the coal is required to produce the energy to convert 106.9 pounds of ice at 0.00°C to steam at 100.°C? specific heat (ice) = 2.10 J/g°C
Specific heat (water) = 4.18 J/g°C
Heat of fusion = 333 J/g
Heat of vaporization = 2258 J/g

• A)5.84 kg
• B)0.646 kg
• C)0.811 kg
• D)4.38 kg
• E)1.46 kg

---

Definitions:

Flexible Budget

A budget that adjusts or varies with changes in volume or activity, allowing for better cost control and planning.

Direct Labor

Direct Labor refers to the wages and benefits for employees directly involved in the production of goods, easily traceable to specific products or services.

Variable Electric Power

Electricity supply or rate that can fluctuate based on demand or time of use, often tied to renewable energy sources.

Fixed Costs

Expenses that do not change in proportion to the activity of a business.