A Sample of Ammonium Chloride Dissolves in Water,absorbing Heat from the Surrounding

question 10

Multiple Choice

A sample of ammonium chloride dissolves in water,absorbing heat from the surrounding water and causing the temperature to drop by 20 °C.If the heat change for the reaction is +300 J,what is the heat change for the surrounding water?

• A) 6,000 J·°C
• B) + 20 °C
• C) +300 J
• D) -300 J

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Definitions:

Unfavorable

A term often used in budgeting and financial analysis to describe results that are worse than expected or budgeted figures.

Variable Overhead Costs

Costs that fluctuate with changes in production volume or activity levels, such as utilities or raw materials, contrasting with fixed costs.

Fixed Overhead Costs

Costs that do not change with the level of production or sales, such as rent, salaries, and insurance.

Standard Costs

Predetermined costs for products and services, used as a benchmark to measure actual operational performance.