What is meant by Sublimation ?

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: A car starts from rest and travels with a constant acceleration of 0.6 ft/s². After a time t it…

A: Given: Acceleration, a=0.6ft/s2 Distance traveled by car in t secs, S=u+12at2S=0+120.6t2S=0.3t2…

Q: what is the healthiest thing to drink

A: It has been known recently that one of the healthiest thing to drink is green tea.

Q: Living creatures generally have a higher temperature than their environment. Explain why this makes…

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Q: How do you acquire and interpret data using a thermogravimetric analysis?

A: Thermogravimetric analysis (TGA) is a method for examining a material's composition and thermal…

Q: The process of themal expansion is what is known as anharmonic. Why is it referred to as such??

A: The propensity of matter to alter its form, area, volume, and density in response to a change in…

Q: what do you observe when you rub the ballpen in your skin or hair?

A: Ballpen rubbed on skin or hair

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: 7. Solve for the distance to Alpha Centauri in light years if the measured parallax shift is 0.749…

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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: How are atoms arranged in crystalline solids?

A: Given: To explain the atoms in which arranged in crystalline solids as,

Q: What is Fick’s law? How this law is modified if guest molecules in fluid are dispersed with certain…

A: Fick's first law connects the diffusion of transition to the inclination of the concentration. It…

Q: When liquid batter is put in the oven and heated it becomes a solid cake. What does this indicate…

A: The correct answer is C-The ingredients had a chemical change. When the liquid batter is put in the…

Q: is amber and rabbit fur negatively charged

A: Basically anything in this universe is electrically neutral. i.e the sum of negative charge and…

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

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Q: Why do you see a lemon as yellow?

A: We have broadly classified the cones in our human eye into red, green and blue in color.

Q: what are two properties of water makes it strange compared to other substanses?

A: Two properties of water that makes it strange compared to other substances are:1) High specific heat…

Q: If the sled weighs 89 N, find the force ex- erted on the rope by the child. Answer in units of N.

A: Given: The angle of inclination =270 Weight of the sled = 89 N

Q: What happens when you swirl mothballs into oil

A: When you swirl mothballs into oil and observe the mixture, a few things might happen depending on…

Q: What makes up ozone?

A: Most of the ozone is found in upper atmosphere(Stratosphere). One ozone molecule is consist of three…

Q: what is the meaning of the expression"it's not heat, it's the humidity?

A: The expression “it’s not the heat, it’s the humidity”, is used every summer.The heat index, which…

Q: A soft drink with the properties of 10 °C water is sucked through a 3.5-mm-diameter, 0.25-m-long…

A: This is a question from the viscosity and Reynolds number corresponding to a flow of the fluid…

Q: n Bougainvillea, sunflower, and hibiscus, is it simple or compound

A: Sunflower is Compound (Because the collection has the overall appearance of a single flower, the…

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: how does the temperature of the water affect how quickly the food coloring moves through the water?…

A: Introduction: Diffusion is the movement of fluid particles from an area of high concentration to an…

Q: Define the term sublimation.

A: Sublimation is the transition of a substance directly from solid state to the vapor phase without…

Q: Why hot water bottles are used for fomentation?

A: Hot water has high specific heat capacity. Due to this, the water remains hot for a longer duration.

Q: If you boil water in a whistling kettle, the kettle whistle when the water reached  its boiling…

A: In this problem it is asking about why does kettle whistle when the water reached its boiling point.

Q: Many tongues have been injured by licking a piece of metal on a very cold day. Why would no harm…

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Q: Match the following descriptions with most appropriate circuit. Circuit A +++ Circuit B ✓ If one…

A: Given circuit,

Q: 6. What speed must you toss a ball straight up so that it takes 6.0 s to return to you? oTenos to…

A: When an object is thrown obliquely near the Earth's surface, it moves in a curved path. The object…

Q: As a summer intern at a research lab, you are given a long sc that has two separate windings that…

A: Given data:-  The length of the solenoid is L = 39 cm  The diameter of solenoid d = 2.80 cm  The…

Q: Why do you think the temperatures are so different in these two layers?

A: Concept used: Temperature gradient is used.

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: Besides solid, liquid, and gas, what is the fourth form of matter?

A: Fourth form of matter is Plasma.