According to the First Law of Thermodynamics,____

question 22

Multiple Choice

According to the first law of thermodynamics,____.  

• A) the energy of a system always increases
• B) the amount of energy in the universe is changeable
• C) chemical reactions do not create or destroy energy
• D) energy is always stable
• E) energy always decreases

---

Definitions:

Variable Costs

Expenditures that adjust based on the quantity of production or the scale of sales.

Utility Rates

Charges imposed by utility companies for the use of services such as electricity, gas, water, and sewer.

Contribution Margin

The amount by which the sale of a product or service exceeds its variable costs, used to cover fixed costs and contribute to net income.

Fixed Costs

Expenses that do not change with the level of production or sales over a relevant period, such as rent, salaries, and insurance.