Discuss why water can issue from deep underwater vents at temperatures of some 300°C without boiling.

Q: Suppose you have a 0.45 kg package of frozen vegetables at 0°C. -How much heat, in kilocalories,…

A: mass (m) = 0.45 kg Initial temperature (T) = 0oC Heat of fusion (Lf) = 79.8 kCalkg

Q: What is vulnerabilty of security guards during heat waves? What  problems they might face during…

A: Heat is just energy in transit. When it is not moving it is thermal energy. It is that heat flows…

Q: What is vulnerabilty of security guards during heat waves? What problem they might face during heat…

A: Heat is just energy in transit. Flow of energy thermal is heat. It increases temperature. It flows…

Q: Discuss the correlation between growing human population and climatic change?

A: Overpopulation means more use of the fossil fuels, and other natural resources which leads to the…

Q: State the term convection.

A: Convection is popular way of heat transfer in liquids and gases. In this process warmer air or…

Q: How do airplanes stay in the air?

A: When air flows over any flat plate at an angle, like when you hold your hand out of a car window on…

Q: Describe the energy stores and tranfers that occur when balloon is burst.

A: When a balloon is stretched, then work is done against the elastic force of balloon and hence,…

Q: How much thermal energy is released when 5 kg of a coal sample fromEmroy, Utah is burned?

A: 1 kg of coal when burnt approximately releases 30 MJ of energy. In that case, for 5 kg coal the…

Q: Would regelation occur if ice crystals did not have an open structure? Explain.

A: The structure of ice is similar to that of water molecules. There exist hydrogen bonds in ice…

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: What mechanisms of heat loss are aided by convection?

A: Convection is the process of heat flow from one point to another point.

Q: Why will water flow more readily than cold water through small leaks in a car radiator?

A: Surface tension of liquid depends on temperature. As temperature increases, surface tension…

Q: Consider a bar 1 m long that expands 0.6 cm when heated. Show that when similarly heated, a 100-m…

A:

Q: Which represents a greater change in temperature: an increase of 1°C. 1'F, or 1 K?

A: Comparatively, the 1 degree rise in the Celsius is hotter than 1 degree rise in Fahrenheit as 1…

Q: Compare between hydrothermal and solvothermal by using the properties ??

A: in this question  we compare  hydrothermal and solvothermal properties.

Q: Why is specific heat capacity important?

A: The relationship between the change in a substance’s thermal energy and the change in its…

Q: •Calculate the rate of heat transfer by conduction through a window with an area of  1.00m2  that is…

A:

Q: What are the differences between cryo-SPA VS cryo-ET techniques and their advantages and…

A: It is a therapeutically treatment utilizing a cryosauna the body is immersed in a cold chamber,…

Q: Why does presence of large water bodies tend to moderate the climate of nearby land- to make it…

A:

Q: Chaptar 11, Preblem 09 A Verturt meter is a device for measuring the speed of a win plpe. The…

A: Note: As per guidelines, we can only answer one question. Sorry of inconvenience. Given values:…

Q: How thermohaline circulation develop? Explain.

A: The word 'Thermohaline' derives from thermo referring to temperature and haline referring to salt…

Q: Discuss the correlation between a growing human population and climate change

A: Growing population contribute to a drastic change in the climate by the use of various comforts…

Q: Discuss the function of photovoltaic cell.What does it produce?

A: The photovoltaic cell is a cell which is used to convert the light into direct current. It works in…

Q: Explain why the 2-4 inch thick layer of blubber on a polar bear helps to keep polar bears warm…

A: Blubber is a thick layer of adipose tissue. Polar bears store extra digested food in the form of…

Q: Why does the water in a car radiator sometimes boil explosively when the radiator cap is removed?

A:

Q: If a material 10 meter in length elongates 10 mm due to increase in temperature, and undergoes…

A: The expression for linear expansion is L=L0α∆T Due to increase in temperature, the material…

Q: How did cavemen keep warm?

A: Archaic humans had much of body hair (fur) to keep them warm from cold, and protect from sun.…

Q: Discuss the function of a photovoltaic cell. What does it produce from what?

A: The fundamental thought behind photovoltaic (or 'sun powered') cells is quite straightforward. To…

Q: When a chalk piece is immersed in water, bubbles are emitted, why?

A: A piece of chalk has extremely narrow capillaries. As it is immersed in water, water rises due to…

Q: Why does hydrogen escape from Earth's atmosphere more readily than oxygen?

A: The expression for the rms velocity,

Q: In a closed room dust generally settles down. Why?

A: Dust generally settles down in a closed room. The small dust particles acquire a very small terminal…

Q: Relationship between temperature scales?

A: Relationship between temperature scale. As the temperature is measured in difference in scales, such…

Q: Why does helium, released into the atmosphere, eventually disappear into space?

A:

Q: Calculate the total amount of energy (in kJ) required to heat 0.2 kg of Mercury from its melting…

A: The amount of heat required is, Q=mCT2-T1 the specific heat capacity is 140 J/kgK or J/kgoC.

Q: Explorers on failed Arctic expeditions have survived bycovering themselves with snow. Why would they…

A: Snow is falky and cotton line .It contains trapped air in between them.

Q: Consider two fluids, one with a large coefficient of volume expansion and the other with a small…

A: The greater the volume expansion coefficient, the greater will be the change in density with…

Q: Why does all the water in a lake have to be cooled to 4°C before surface water can be cooled below…

A: A lake starts to cool from some temperature above 4 degree Celsius. The surface water on reaching…

Q: When does Radiation occur?

A: Finding when does Radiation occur

Q: Why does Earth lose heat mainly by radiation?

A: The transfer of heat energy in the forms of electromagnetic waves is known as radiation.

Q: Ice is packed in saw dust, Why?

A: Saw dust is a very bad conductor of heat. So, if ice is kept in saw dust, ice will not melt easily.

Q: Why do vapor bubbles in a pot of boiling water get larger as they approach the surface?

A: Vapor bubbles in a pot of boiling water get larger as they approach the surface.