To find: Whether an electric fan cools the air and the reason if it doesn’t.

Expert Solution & Answer

Explanation of Solution

Introduction:

The concept of evaporation on the temp of the body.

All the electric fan convert electrical energy into heat energy directly so the fan does not cool the room at all. By the blowing the air around, the fan make it easier for air to evaporate the sweats from our body rapidly. Faster the evaporation more cooler we feel. Hence to make evaporation faster we use the electric fan in our house.

Chapter 14, Problem 9Q

Chapter 14, Problem 11Q

Chapter 14 Solutions

Physics: Principles with Applications

Ch. 14 - Prob. 1Q Ch. 14 - Prob. 2Q Ch. 14 - (a) If two objects of different temperatures are...Ch. 14 - In warm regions where tropical plants grow but the...Ch. 14 - Prob. 5Q Ch. 14 - Prob. 6Q Ch. 14 - Prob. 7Q Ch. 14 - Prob. 8Q Ch. 14 - Prob. 9Q Ch. 14 - Prob. 10Q

Ch. 14 - Prob. 11Q Ch. 14 - 11. Explorers on failed Arctic expeditions have...Ch. 14 - Prob. 13Q Ch. 14 - Prob. 14Q Ch. 14 - Prob. 15Q Ch. 14 - Prob. 16Q Ch. 14 - Prob. 17Q Ch. 14 - Prob. 18Q Ch. 14 - Prob. 19Q Ch. 14 - Prob. 20Q Ch. 14 - Prob. 21Q Ch. 14 - Prob. 22Q Ch. 14 - A premature baby in an incubator can be...Ch. 14 - Prob. 24Q Ch. 14 - Prob. 25Q Ch. 14 - Prob. 26Q Ch. 14 - 26. The Earth cools off at night much more quickly...Ch. 14 - Prob. 28Q Ch. 14 - Prob. 29Q Ch. 14 - Prob. 30Q Ch. 14 - To what temperature will 8200 J of heat raise 3.0...Ch. 14 - How much heat (in joules) is required to raise the...Ch. 14 - Prob. 3P Ch. 14 - An average active person consumes about 2500 Cal a...Ch. 14 - A British thermal unit (Btu) is a unit of heat in...Ch. 14 - How many joules and kilocalories are generated...Ch. 14 - A water heater can generate 32,000 kJ/h. How much...Ch. 14 - Prob. 8P Ch. 14 - An automobile cooling system holds 18 L of water....Ch. 14 - What is the specific heat of a metal substance if...Ch. 14 - (a) How much energy is required to bring a 1.0-L...Ch. 14 - Prob. 12P Ch. 14 - 14. (II) What will be the equilibrium temperature...Ch. 14 - A 31.5-g glass thermometer reads 23.6°C before it...Ch. 14 - A 0.40-kg iron horseshoe, just forged and very hot...Ch. 14 - Prob. 16P Ch. 14 - The heat capacity, C, ofan object is defined as...Ch. 14 - Prob. 18P Ch. 14 - Prob. 19P Ch. 14 - Prob. 20P Ch. 14 - Estimate the Calorie content of 65 g of candy from...Ch. 14 - Prob. 22P Ch. 14 - If 3.40 x 105 J of energy is supplied to a...Ch. 14 - How much heat is needed to melt 23.50 kg of silver...Ch. 14 - Prob. 25P Ch. 14 - What mass of steam at 100°C must be added to 1.00...Ch. 14 - Prob. 27P Ch. 14 - Prob. 28P Ch. 14 - Prob. 29P Ch. 14 - Prob. 30P Ch. 14 - Prob. 31P Ch. 14 - Prob. 32P Ch. 14 - A cube of ice is taken from the freezer at -8.5°C...Ch. 14 - Prob. 34P Ch. 14 - Prob. 35P Ch. 14 - Prob. 36P Ch. 14 - Prob. 37P Ch. 14 - 39. How long does it take the Sun to melt a block...Ch. 14 - Prob. 39P Ch. 14 - Two rooms, each a cube 4.0 m per side, share a...Ch. 14 - Prob. 41P Ch. 14 - Approximately how long should it take 8.2 kg of...Ch. 14 - Prob. 43P Ch. 14 - Suppose the insulating qualities of the wall of a...Ch. 14 - Prob. 45GP Ch. 14 - Prob. 46GP Ch. 14 - Prob. 47GP Ch. 14 - Prob. 48GP Ch. 14 - Prob. 49GP Ch. 14 - Prob. 50GP Ch. 14 - Prob. 51GP Ch. 14 - Prob. 52GP Ch. 14 - Prob. 53GP Ch. 14 - Prob. 54GP Ch. 14 - Prob. 55GP Ch. 14 - Prob. 56GP Ch. 14 - Prob. 57GP Ch. 14 - Prob. 58GP Ch. 14 - Prob. 59GP Ch. 14 - Prob. 60GP Ch. 14 - Prob. 61GP Ch. 14 - Prob. 62GP Ch. 14 - Prob. 63GP Ch. 14 - Prob. 64GP Ch. 14 - Prob. 65GP Ch. 14 - Prob. 66GP

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