Why does cold mountain air become warm when it descends into valley?

Q: Why does snow often remain even when daytime temperatures are higherthan the freezing temperature?

A: For any substance to melt, it requires an enormous amount of energy. Snow forms by the fusion of…

Q: If the composition of the upper atmosphere were changed so that it permitted a greater amount of…

A: The earth’s atmosphere is very important to maintain the temperature of earth. It also protects us…

Q: Why are icebergs often surrounded by fogs?

A: Condensation can be defined as the change of phase of water from gaseous to liquid.

Q: You can make rain in your kitchen. Put a cup of water in a Pyrex saucepan or a glass coffeemaker and…

A: In our experiment, the warm vapor is cooled with the help of ice. And then steam is again converted…

Q: Why is evaporation a cooling process?

A: Evaporation is the process in which water changes its phase from liquid to gaseous.

Q: Why are icebergs often surrounded by fog?

A: Temperature of ice burgs will be very low , it will be below zero degree Celsius .   Moisture…

Q: Which has the greater amount of internal energy- an iceberg or a cup of hot coffee? Defend your…

A: The internal energy is the sum of all energy within the substance.

Q: When there is morning frost on the grass in an open park, why is frost unlikely to be found on the…

A: The ground beneath the bench absorbs less solar radiation compared to the open ground. The ground…

Q: Why do Eskimos build double walled houses of blocks of ice?

A: The Eskimos build double walled houses in order to keep the interior of their houses warm.

Q: What heats faster, land or water?

A:

Q: Why does the high specific heat of water have to do with convection currents in the air at the…

A: Water has a high specific heat capacity (of 4200 J/Kg°C) on the seashore and the land has a much…

Q: Why does warm, moist air form clouds when it rises?

A:

Q: It is generally cold after a hail storm than during and before the hail storm. Give reason.

A: After the hailstorm, the ice starts to melt. To melt, the ice requires heat energy, which it absorbs…

Q: What occurs when air is subjected to less pressure? The air becomes compressed. B. The air expands.…

A: GIVEN: The relation between temperature and pressure is given as  P1T1=P2T2 i.e. when the pressure…

Q: A hot plate placed in snow on a cold winter day is a net   absorber.   emitter.   Both of these.…

A: Given, A hot plate placed in snow on a cold winter day

Q: In summer cotton dresses should be preferred, Why?

A: Step 1During summers everyone tends to perspire a lot as a mechanism of our body to keep us cool.…

Q: Everybody knows that warm air rises. So it might seem that the air temperature should be higher at…

A: When air will get warmer, it will rises and expands. As air is expanding, the pressure will be…

Q: How does the frequency of radiant energy relate to the absolute temperature of the radiating source?

A: The frequency of the radiant energy is directly proportional to the absolute temperature of the…

Q: What generally happens to the temperature of rising air and sinking air?

A: If the Air sinking down compresses air at the surface, raising temperatures near the ground. The…

Q: Discuss how high specific heat capacity of water helps in formation of land and sea breeze.

A: Specific heat capacity of land is 5 times less as compared to water. Thus, air above land becomes…

Q: Birds are often seen to swell their feathers in winters. Why?

A: Birds swelling their feathers is a mechanism to keep themselves warm during winter.

Q: Why is the temperature fairly constant for land masses surrounded by large bodies of water?

A:

Q: Cooling is produced when a gas at high pressure suddenly expands. Explain.

A: When the gas at high pressure suddenly expands, the average distance between its molecules…

Q: Discuss the role of high specific heat capacity of water with reference to climate in coastal areas.

A: Specific heat capacity is the amount of heat energy takes to raise or lower the temperature of one…

Q: Name the method of heat transfer which doesnot depend on gravity.

A: In radiation, heat is transferred without any motion of the medium particles

Q: Why the climate of a harbour town is more temperate than that of a town in a desert at the same…

A: Reason : The climate of a harbour town is more temperate than that of a town in a desert at the same…

Q: Why does the weather become very cold after a hail storm?

A: Ice absorbs a large amount of Latent heat from the surroundings to melt. There is a lot of heat in…

Q: Which requires more heat: 1 g ice at 0° C or 1 g water

A: Given; 1g of ice at 00C or 1 g water at 00CWhich requires more heat to raise its temperature to…

Q: The earth without its atmosphere would be inhospitably cold , Why?

A: The sun rays contain infrared radiations.When these rays reach earth’s surface, these are reflected…

Q: Would you expect the temperature of air to drop as it undergoes a steady-flow throttling process?…

A: In throttling process enthalpy of the working fluid remains constant . h1 =h2 for ideal gas enthalpy…

Q: Explain the saying “It’s not the heat; it’s the humidity.”

A:

Q: Distinguish between weather and climate?

A: Climate is the average weather conditions over a long period of time. It can be generalized, since…

Q: Everybody knows that warm air rises. So, it might seem that the air temperature should be higher at…

A: The temperature decreases with altitude. Let us assume the following situation where the balloon is…

Q: Near a large body of water, the fluctuations in air temperature are usually less extreme than they…

A: Temperature refers to the hotness or coldness of a body. In specific terms, it is the way of…

Q: Give examples of latent heat, fusion, evaporation, and condensation on a day to day basis.

A: Objective: To determine the examples of latent heat, fusion, evaporation, and condensation in the…

Q: Does heat flow into cold areas or does cold flow into hot areas?

A: Yes heat flows from hot to cold area or we can say it moves with the help of particle or atom. for…

Q: Why is it important to protect water pipes in the winter so that they don’t freeze?

A: Given:  water pipes