Fruit framers in Florida during winter spray water on the orange plant to protect the oranges from freezing during low temperatures. Explain how this process works.
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- When there is a phase change energy should be absorbed or released. When ice melt it will absorb energy from its surroundings.
- Similarly, condensation will increase the temperature of the surroundings.
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- Calculate the latent heat of vapourisation for water at 54°C using the data contained in the table below. Temperature /°C p(sat)/kPa Saturated Liquid Volume/cm^3g^-1 Saturated Vapour Volume/cm^3g^-1 53 14.29 1.014 10490 54 15.00 1.014 10020 55 15.74 1.015 9577.9Why do fishermen sail out to the sea in the night? What process helps them to sail easily to the sea in the night and come back to the shore in the morning? think about processes like conduction, convection and radiationAfter class, I walk my dog around the block. Describe how the heat is being transferred in this situation. (Make sure to describe which heat transfer methods are happening, and what objects are losing and gaining heat)
- #6. My buddy is starting to get hypothermic (body temperature 306 K) during an epic backcountry ski adventure. Since I'm quite warm (body temperature 310 K), I decide to get in a sleeping bag with him to try and warm him up. What heat transfer mechanism will be most responsible for heating him up? For simplicity, ignore any internal temperature differences across my body (that is, assume my skin temperature is also 310 K). Use num- bers to support your answer (for human skin, you can use the following values: surface area A = 1.50 m², emissivity € = 0.970, thickness d = 0.0250 m, thermal conductivty 0.200 ms.K) JYou are cold, so you cover yourself in a blanket. A half hour later, you feel much warmer. Explain in detail where the heat came from, and how the blanket helped.Your car’s radiator is made of steel and is filled with coolant. You fill the radiator to the very top with coolant, then drive off without remembering to replace the cap. As the coolant and steel radiator heats up, will the level of coolant drop or rise and overflow? why? what is a radiator is and what purpose does it serves in a car? Here is a good start: https://youtu.be/y5p31F_dVJU