PHYS 204 Week 6 Homework Help

PHYS 204 Week 6 Homework Help | Assignment Help | Devry University 

Week 6 Homework 

Please complete the following 10 Review Problems: Chapter 14, pages 405–406, Problems 1, 3, 9, 11, 12, 14, 15, 17, 21, and 23. Each submitted problem will be graded for quality, as well as correctness. A quality homework problem will contain all given information, the unknown quantity, the basic equation, the working equation, the working equation with the data substituted, and the final answer, and it may include a sketch or drawing. Completed homework problems may be submitted by the due date below as Microsoft Word documents with the equation editor used for all equations or as a neatly handwritten page that has been scanned or photographed. See your text pages 57 to 61 and the Show Your Work area in the Introduction & Resources Module for more details.

Chapter 14 - Review Problems

1.  Change 344 K to degrees Celsius.

3.  Change 5110°C to degrees Fahrenheit.

9.  Find the heat flow in 25.0 days through a freezer door 80.0 cm × 144 cm insulated with cellulose fiber 4.0 cm thick. The temperature inside the freezer is −14°C. Room temperature is 22°C.

11.  How many kcal of heat must be added to 148 kg of aluminum to raise its temperature from 21.5°C to 485°C?

12.  A 161-kg steam boiler is made of steel and contains 1127 N of water at 8.9°C. How much heat is required to raise the temperature of both the boiler and the water to 100°C?

14.  A 355-g piece of metal at 48.0°C is dropped into 111 g of water at 15.0°C. If the final temperature of the mixture is 32.5°C, what is the specific heat of the metal?

15.  A brass rod 45.2 cm long expands 0.734 mm when heated. Find the temperature change.

17.  The diameter of a hole drilled through aluminum at 22°C is 7.50 mm. Find the diameter and the area of the hole at 89°C.

21.  How many kcal of heat are required to vaporize 21.5 kg of water at 100°C?

23.  How many kcal of heat must be withdrawn from 4.56 kg of steam at 125°C to change it to ice at −44.5°C