What substances trap heat from the Earth in the atmosphere?

Q: How does melting ice change the temperature of the surrounding air?

A: For the ice to melt, it needs to gain energy from the surrounding.

Q: cool

A: Aluminium has higher specific heat capacity which means you require more heat energy to heat up a…

Q: A pound of body fat stores an amount of chemical energy equivalent to 3,500 Cal. When sleeping, the…

A: A pound of body fat is equivalent to 3500 calorie.  time required =total energy/ rate of energy loss

Q: is caused when metallic substances are heated to high temperatures.

A: The temperature increase of the metallic substance affect the substance in many ways.

Q: The heating effect depends on which factors?

A: The heating effect of current depends on the following factors : The amount of time for which the…

Q: Why does water vapor in the air condense when the air is chilled?

A: In the condensation process, a substance changes its phase from gas to liquid.   The kinetic energy…

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

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Q: A 2.15-gram cashew nut is burned. The heat released raises the temperature of a 100.0-gram sample of…

A: Here, Convert joules to calories.

Q: What protects the body from things like hot stove

A: Due to temperature gradient.

Q: If you could use any source of energy for heating your food, which one would you use and why?

A:

Q: Heat transfer by conduction occurs when molecules: A) Collide B) Combine C) Heated D) None of the…

A: When a substance is heated, particles gains more energy and vibrate more. These molecules collide…

Q: Which of these will cause water to change to ice? O Adding salt to the water O Removing heat from…

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Q: What is the difference between saturated vapor and superheated vapor?

A: Saturation temperature is nothing but the phase change temperature. During phase change temperature…

Q: If cooling occurred at the bottom of a pond instead of at the surface, would the pond freeze from…

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Q: A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. When sleeping, the…

A:

Q: Qingshan runs at an average rate of 4.11 mph for 1.79 hours every morning. If he burns 5.26…

A: Average speed (v) = 4.11 mph time (t) = 1.79 hours calories burnt per minute = 5.26 calories min

Q: How can water be brought to a boil without heating it?

A: Boiling is the process when liquid phase changes to the gas phase.

Q: Why will spraying fruit trees with trees with water before a frost help to protect the fruit from…

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Q: Blank is a packet of air which it warmer than the surrounding air which are localized heating causes…

A: Given : Blank is a packet of air which is warmer than the surrounding air which are localized…

Q: Why is there a need to constantly stir the metal shots during heating?

A:

Q: Which accurately represents these building blocks of matter from the smallest to largest

A: Atoms can be described as particles that are composed of nucleus and electrons. The combination of…

Q: Where does the heat added go during melting or boiling point?

A: When heat is supplied to a solid, (eg : ice) it starts melting. But temperature rise only up to a…

Q: How much heat (in kJ) must be added to completely transform the ice (at the melting point) to liquid…

A: Given Mass of ice = 2.0 kg Initial temperature of ice = -8 °C Final temperature of water = 0 °C We…

Q: Convert 150 Calories to Joules

A: Among the basic fundamental units for the measurement, Joule is the one of the fundamental SI unit…

Q: 10.4 megajoules is equivalent to __________BTUs

A: Given :  energy in Joule = 10.4 mega joules

Q: Suppose the hot cocoa loses 100J of energy by heating. How much energy does the air gain?

A:

Q: How long will it take to cool the lemon squash

A: Given data;  Mass,m=0.5 kg Specific heat capacity,c=4200 J kg-1K-1Lemon squash,t1=300CLemon at cool,…

Q: Why does increasing the temperature of a solid make it melt?

A: The process by which solid become liquid is known as melting. Phase changes occur when matter…

Q: If it takes 300 kJ to melt 5 kg of a substance, what is its latent heat of fusion.

A: The latent heat of fusion is the energy required in phase transition per unit weight.

Q: What is the difference between the calorie used in physics and Calorie used in nutrition?

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Q: Substances that don’t conduct heat are known as what?

A: The value of coefficient of thermal conductivity (K) of a material is equal to the rate of flow of…

Q: What is Insulation ?

A: Insulation is used to fill the spaces such as little gaps behind walls and above ceiling of the home…

Q: When you grind wheat to make flour, the flour comes out very warm—you can actually scorch the flour…

A: To grind wheat to flour force has to be applied which does work on it .The work done by this force…

Q: What are the limitations of first law of thermodyamics?

A: Limitations of the first law of thermodynamics:

Q: The process of transfer of heat in solids is.

A: Here, we will understand the meaning of all given options to find the answer -  (a). Insulation -…

Q: HIGH HUMIDITY AND LOW TEMPERATURES 1. at high humidity low temperature easily transferred human 2.…

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Q: When water freezes what happens to its molecules?

A: This question is based on thermal properties of matter topic. At high temperature, the molecules of…

Q: What is the best material to use to insulate a home?

A: Bulk insulation includes materials such as glass wool, wool, cellulose fiber, polyester and…

Q: What happens to the temperature of boiling water once it's boiling point is reached

A: The temperature of the substance at which the vapor pressure of liquid becomes equivalent to the…

Q: Rank the boiling point temperatures from highest to lowest in these locations (a) Death valley (b)…

A: With increase in elevation, boiling point is lowered.

Q: Describe one material that is a good insulator

A: Every materials have free electrons in it. So when some potential is applied to that material, the…

Q: Why is the energy is required to melt a solid?

A: Particles in solid are connected to each other by strong bonds and cannot move freely as in liquid…

Q: How  much heat is  required to  convert 12.0 g of  ice  at-10.0℃ to  steam  at 100.0 ℃. Express…

A: Given data: Mass of ice, m=12.0 g=0.012 kg Temperature of ice, Ti=-10.00C Temperature of steam,…

Q: Pure water is an insulator whereas salty water is a conductor. Why?

A: It is a true statement that pure water is an insulator whereas the salty water is a conductor.

Q: 1 liter of 30°C water is mixed with 4,000g of 50°C water. What will be the temperature of the…

A: When heat energy is supplied to or absorbed from an object the temperature of the object will…