Q: What would happen to the water level in a glass if the ice cube floating in a glass of water will be…
A: 1. When the ice cube is floating on water, from Archimedes principle, FBuoyant=Wice The weight of…
Q: If you let go of a helium balloon, it quickly rises. As it rises, the balloon gets larger and larger…
A: Step 1 The atmospheric pressure is the total pressure applied by the air column over the earth's…
Q: What is the phase change from a solid to liquid?
A: The process of a solid becoming a liquid is called melting (an older term that you may see sometimes…
Q: Why can water be boiled in paper cup?
A: Step 1Water can be boiled in paper cup without burning the paper cup.
Q: A wood block is placed on top of the ice in a large bowl half full of ice. The bowl is then filled…
A:
Q: You have a glass of water filled to the brim with ice. When the ice melts, A. the water will…
A: To determine: What happens when the ice melts, if a glass of water is filled to the brim with ice?
Q: Glass marbles are made by heating the end of a glass rod until drops of molten glass falls. Explain.
A: ReasonSurface tension
Q: A small amount of water is boiled in a 1-gallon metal can.The can is removed from the heat and the…
A: When the water boils the metal can fill up with steam.
Q: A hot iron horseshoe (mass = 0.45 kg ), just forged, is dropped into 1.10 L of water in a 0.40 kg…
A: mass of iron, m = 0.45 kg initial temperature of iron, T' = 110 degree C mass of water, m' = 1.1…
Q: Why is a liquid container more likely to burst from the base?
A: One is that air pressure is which causing the bottom to break out.
Q: If ice has the same molecular composition water, why do ice float on water? as
A: Density of a substance is the mass per unit volume of the substance. If the volume of a substance…
Q: Why must a glass dish taken from the oven and put into cold water shatter?
A: A glass dish taken from the oven and put into cold water shatter because When hot, thick glass is…
Q: A steel blade floats on the surface of pure water . When detergent is added it sinks, why?
A: An object floats on water when its density is lesser than that of water. In other words, Steel blade…
Q: When a liquid evaporates
A: When a liquid evaporates,
Q: There are three containers of different shapes with the same base area. Which has a) lightest. b)…
A:
Q: Which of the following materials expand the least when heated? A plastic cup A soda can A ceramic…
A: The expansion of material is totally depends on the coefficient of thermal expansion so the higher…
Q: Why do thin french fries cook faster than thick fries?
A: Surface area of small object is large, so the smaller the object the larger the surface area.
Q: Give practical application of spreading liquid over solid?
A: Step 1Wetting is the ability of a liquid to maintain contact with a solid surface. It occurs as a…
Q: A sealed container of water is full, except for a tall thin tube that is attached to it. Water is…
A: When water is poured into the tube, the depth of the water increases and hence the pressure at the…
Q: Why does the fire in fireplace burn more briskly on a windy day?
A: There are two reasons for the fire burns more briskly on a windy day. On a windy day, the wind…
Q: Why is the base of a cooking pan made thick and heavy?
A: Reason for thick base of cooking pan:The base of a cooking pan is generally made up of metals which…
Q: Place a jar of water on a small stand within a saucepan of water so that the bottom of the jar is…
A: Given: Sauce pan and a jar of water
Q: Why does the viscosity of a gas increase with the increase in temperature while the viscosity of a…
A: Ans:- Image-1
Q: Why do frying pans have a thick base?
A: A thick base pan has higher mass hence higher heat capacity. A substance with large heat capacity…
Q: If you hold a narrow strip of paper in front of your mouth and blow over the top surface, what will…
A: A narrow strip of a paper is keeping in front of mouth and then blown up. the blown air will…
Q: Why are bottoms so that utensils for cooking food blackened?
A: Why are the bottoms of cooking utensils are blackened?Black color absorbs maximum amount of heat…
Q: When a mixture of fine powder and coarser granules is suspended in water, the rate at which the fine…
A: When the mixture of fine powder and coarser granules is suspended in the water, the coarser granules…
Q: Why do we say a substance in a liquid phase is more disordered than the same substance in the solid…
A:
Q: Skating on ice is possible because A) the surface of ice is smooth B) ice is cold C) the pressure…
A: Skating on ice is possible because of Regelation. Regelation is the process of melting ice under…
Q: Ice cubes float in a glass of iced tea. Why would cooling be less if the cubes were instead on the…
A:
Q: Equal amounts of heat are added to pieces of metal of equal mass. The metal that will have the…
A: Given data: The mass and amount of heat input to each mass is equal. Need to determine the which…
Q: A block of ice at 0ºC is floating on the surface of ice water in a beaker. The surface of the water…
A: Introduction: The same material shows different properties depending on its state. The water is one…
Q: Ice covered with a gunnu bag does not melt for long time. Why?
A: The air is a good insulator of heat. In gunny bags, there are pores between consecutive layers or…
Q: A piece of unpainted porous wood barely floats in an open container partly filled with water. The…
A: The volume is inversely proportional to the pressure. So when pressure increases volume decreases…
Q: When ice floats on water, its _____ part remains outside the water. A) 0.5 B) 0.3 C) 0.1 D) 1
A: When ice floats on water, one by tenth of it remains outside the water. That is, when ice floats on…
Q: Finger bones are flat rather than cylindrical on the gripping side; this made the force to spread…
A: Pressure is inversely proportional to cross sectional area.
Q: What happens to the hexagonal open structure of ice when sufficient pressure is applied to it?
A: From the application of energy or pressure the state of matter can be changed , thus if sufficient…
Q: Why is it easier to loosen the metal lid on a glass jar after dipping it under hot water
A: The metal lid will expand quickly than the glass jar , so that it will expand and…
Q: It is difficult to walk on sand or ice. Why?
A: It's difficult to walk on ice because there's very little friction between the bottoms of your shoes…
Q: On cold water oil spreads , but on hot water it remains in the form of drops. Why?
A: Oil spreads on cold water but may remain as a drop on hot water because: Surface tension of oil is…
Q: Why is it easier to start a fire with kindling rather than with large sticks and logs of the same…
A: Oxygen in air help to burn. Kindling has large surface area than the large sticks and logs of the…
Q: Water at a temperature of 4 decrees Celsius is poured into a pot.It has a density of…
A: Initially liquid with larger density will fall below. That's why water at 4°c is below the oil. One…
Q: A metal soap dish barely floats in water. A bar of Ivory soap floats in water. When the soap is…
A:
What is the reason why Ice with salt melts faster than Ice only?
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- A sample of gas with a thermometer immersed in the gas is held over a hot plate. A student is asked to give a step-by-step account of what makes our observation of the temperature of the gas increase. His response includes the following steps. (a) The molecules speed up. (b) Then the molecules collide with one another more often. (c) Internal friction makes the collisions inelastic. (d) Heat is produced in the collisions. (e) The molecules of the gas transfer more energy to the thermometer when they strike it, so we observe that the temperature has gone up. (f) The same process can take place without the use of a hot plate if you quickly push in the piston in an insulated cylinder containing the gas. (i) Which of the parts (a) through (f) of this account are correct statements necessary for a clear and complete explanation? (ii) Which are correct statements that are not necessary to account for the higher thermometer reading? (iii) Which are incorrect statements?Ethyl alcohol has about one-half the specific heat of water. Assume equal amounts of energy are transferred by heat into equal-mass liquid samples of alcohol and water in separate insulated containers. The water rises in temperature by 25C. How much will the alcohol rise in temperature? (a) It will rise by 12C. (b) It will rise by 25C. (c) It will rise by 50C. (d) It depends on the rate of energy transfer. (e) It will not rise in temperature.What is the distinction between gas and vapor?
- Consider the piston cylinder apparatus shown in Figure P20.81. The bottom of the cylinder contains 2.00 kg of water at just under 100.0c. The cylinder has a radius of r = 7.50 cm. The piston of mass m = 3.00 kg sits on the surface of the water. An electric heater in the cylinder base transfers energy into the water at a rate of 100 W. Assume the cylinder is much taller than shown in the figure, so we dont need to be concerned about the piston reaching the top of the cylinder. (a) Once the water begins boiling, how fast is the piston rising? Model the steam as an ideal gas. (b) After the water has completely turned to steam and the heater continues to transfer energy to the steam at the same rate, how fast is the piston rising?A hole is drilled in a metal plate. When the metal is raised to a higher temperature, what happens to the diameter of the hole? (a) It decreases. (b) It increases. (c) It remains the same. (d) The answer depends on the initial temperature of the metal. (e) None of those answers is correct.A 0.040.-kg ice cube floats in 0.200 kg of water in a 0.100-kg copper cup; all are at a temperature of 0C. A piece of lead at 98C is dropped into the cup, and the final equilibrium temperature is 12C. What is the mass of the lead?
- You observe two helium balloons floating next to each other at the ends of strings secured to a table. The facing surfaces of the balloons are separated by 12 cm. You blow through the small space between the balloons. What happens to the balloons? (a) They move toward each other. (b) They move away from each other. (c) They are unaffected.A liquid with a coefficient of volume expansion just fills a spherical shell of volume V (Fig. P16.53). The shell and the open capillary of area A projecting from the top of the sphere are made of a material with an average coefficient of linear expansion . The liquid is free to expand into the capillary. Assuming the temperature increases by T, find the distance h the liquid rises in the capillary.The mass of a hot-air balloon and its cargo (not including the air inside) is 200 kg. The air outside is at 10.0C and 101 kPa. The volume of the balloon is 400 m3. To what temperature must the air in the balloon be warmed before the balloon will lift off? (Air density at 10.0C is 1.244 kg/m3.)
- In winter, why did the pioneers store an open barrel of water alongside their produce?If you place 0C ice into 0C water in an insulated container, what will happen? Will some ice melt, will more water freeze, or will neither take place?Pioneers stored fruits and vegetables in underground cellars. In winter, why did the pioneers place an open barrel of water alongside their produce?