Description : When ice melts into water, which type of change occurs in entropy?
Last Answer : Increases
Description : Twenty grams of ice at 0˚C melts to water at 0˚C. How much does the entropy of the 20g change in this process? a. 30.5 J/K b. 24.6 J/K c. 21.3 J/K d. 15.7 J/K
Last Answer : 24.6 J/K
Description : Entropy of the system decreases, when (A) Snow melts into water (B) A gas expands spontaneously from high pressure to low pressure (C) Water is converted into ice (D) Both (B) & (C)
Last Answer : (D) Both (B) & (C)
Description : If ice floating on water in a vessel melts, the water level in the vessel - (1) increases (2) does not change (3) first increases before decreasing (4) decreases
Last Answer : (2) does not change Explanation: When ice floating on water in a vessel melts, the water level in the vessel does not change. This is because when floating, the ice displaces an amount of water ... that the mass of the liquid displaced by a floating object is equivalent to the mass of the object.
Description : If ice floating on water in a vessel melts, the water level in the vessel _______. (1) increases (2) does not change (3) first increases before decreasing (4) decreases
Last Answer : (2) does not change Explanation: When ice floating on water in a vessel melts, the water level in the vessel does not change. This is because when floating, the ice displaces an amount of water equal to its mass, and when melted, it becomes an amount of water equal to its mass.
Last Answer : does not change
Description : What is the energy temperature and mass change when an ice cube melts?
Last Answer : The mass remain unchanged; the enthalpy of fusion is 333,55 J/g.
Description : What type of ice cream melts faster chocolate or strawberry?
Last Answer : All about the same, but strawberry mainly because of the fruit chunks would absorb heat and make it melt.
Description : If ice floating on water in a vessel melts, the water level in the vessel
Description : When the ice floating in a glass of water melts, the level of water will (a) Increase (b) Decrease (c) Remain constant (d) First increase and then decrease
Last Answer : Ans:(c)
Description : When a cube of ice floating on water in a beaker melts, the level of water in the beaker (a) rises (b) falls (c) remains the same (d) first rises and then falls
Description : A piece of ice is floating in water kept in a beaker. When all the ice melts the level of water will - (1) first rise and then fall (2) fall (3) remain the same (4) rise
Last Answer : (3) remain the same Explanation: The submerged portion of the ice on melting shrinks a little in volume. So the level of water goes down a little. But this is just made up by the water added by the melting of upper portion.
Description : An ice block with a piece of lead embedded in it floats in water. If ice melts the water level – (1) Rises (2) Falls (3) Remains same (4) Falls first and them rises
Last Answer : (2) Falls
Description : An ice block with a piece of lead embeded in it floats in water. If ice melts the water level (1) Rises (2) Falls (3) Remains same (4) Falls first and then rises
Last Answer : Falls
Description : How come if you get a pop and it's watered down you notice immediately and refuse to drink it, but if you've been drinking a giant pop for a while and the ice melts and it gets all watery near the bottom... you still drink it and its just as delicious?
Last Answer : Quality principle
Description : Ice melts when heated up. But I solidify when I'm heated up. What am I? -Riddles
Last Answer : An egg.
Description : When Ice melts in iceboxes because .?
Last Answer : Need answer
Description : What melts ice faster salt cat litter or sand?
Last Answer : Rock Salt try it the salt will go straight down
Description : What melts snow and ice?
Last Answer : Warmth and heat melts snow and ice
Description : How can you set up an experiment to measure the rate at which ice cube melts by using ice cube graph paper and petri dish?
Last Answer : (this isnt really an answer) im doing my chemistry homework and i see this question and its due soon...help I'm a 7th grader
Description : As the temperature of ice rises, the ice melts and its density _____. A. Decreases B. Remains constant C. Increases D. Increases upto 10 °C
Last Answer : ANSWER: C
Description : As the temperature of ice rises, the ice melts and its density? A. Decreases B. Remain constant C. Increases (Answer) D. Increases upto 10C
Last Answer : C. Increases (Answer)
Description : A large iceberg melts at the base, but not at the top, because of the reason that (A) Ice at the base contains impurities which lowers its melting point (B) Due to the high pressure at the base, its melting point ... C) The iceberg remains in a warmer condition at the base (D) All (A), (B) and (C)
Last Answer : (B) Due to the high pressure at the base, its melting point reduces
Description : The atmospheric temperature during melting of ice/snow (in the atmosphere) (A) Decreases (B) Increases (C) Remain same (D) May increase or decrease; depends on the altitude where snow melts Answer
Last Answer : A) Decreases
Description : When ice melts its volume?
Last Answer : decreases
Description : . At the Melting Moments, an ice cream parlour, customers place their orders, watch their ice- cream sundaes being prepared, and then quickly eat the sundaes in the store before the ice cream ... known as A. Inseparability B. Intangibility C. Heterogeneity D. Perishability E. Dependency
Last Answer : D. Perishability
Description : Deposits that form when the ice in a glacier melts are called: w) drifts x) dunes y) veins z) cirques (pron: serks)
Last Answer : ANSWER: W -- DRIFTS
Description : When ice cubes are made, the entropy of water – (1) does not change (2) decreases (3) increases (4) may either increase or decrease depending on the process used
Last Answer : (2) decreases Explanation: When water is frozen into ice, the temperature drops below 0°C. Since the entropy of the solid is less than that of the liquid, the entropy of the water (the system ... decrease is found by dividing the heat of fusion of ice by the temperature for the reversible pathway.
Description : When ice cubes are made, the entropy of water (1) does not change (2) decreases (3) increases (4) may either increase or decrease depending on the process used
Description : The enthalpy change for a given reaction at `298 K` is `-x cal mol^(-1)`. If the reaction occurs spontaneously at `298 K`, the entropy change at that
Last Answer : The enthalpy change for a given reaction at `298 K` is `-x cal mol^(-1)`. If the reaction occurs ... (-1)` C. Cannot be negative D. Cannot be positive
Description : Pick out the wrong statement. (A) Cp of monatomic gases such as metallic vapor is about 5 kcal/kg.atom (B) The heat capacity of solid inorganic substance is exactly equal to the ... isolated system (D) At absolute zero temperature, the heat capacity for many pure crystalline substances is zero
Last Answer : (C) There is an increase in entropy, when a spontaneous change occurs in an isolated system
Description : Which of the following occurs in a reversible polytrophic process? a. Enthalpy remains constant b. Internal energy does not change c. Some heat transfer occurs d. Entropy remains constant
Last Answer : Some heat transfer occurs
Description : A state occurs in isentropic process a. The change in entropy is 0 b. The change in entropy is 1 c. The change in enthalpy is 0 d. The change in enthalpy is 1
Last Answer : The change in entropy is 0
Description : Assertion :- Water in liquid state is more stable than ice at room temperature. Reason :- Water in liquid from has higher entropy than ice.
Last Answer : Assertion :- Water in liquid state is more stable than ice at room temperature. Reason :- Water in ... . D. If both Assertion & Reason are false.
Description : Pick out the correct statement. (A) Like internal energy and enthalpy, the absolute value of standard entropy for elementary substances is zero (B) Melting of ice involves increase in enthalpy and ... of an ideal gas depends only on its pressure (D) Maximum work is done under reversible conditions
Last Answer : (D) Maximum work is done under reversible conditions
Description : What kind of change is it that some part of the wax melts in the heat when the candle is lit ?
Last Answer : When a candle is lit, some part of the wax melts in the heat. This is a physical change.
Description : A chemical change takes place when iron (A) Rusts (B) Melts (C) Is heated (D) None of these
Last Answer : (A) Rusts
Description : A solid metallic block weighing 5 kg has an initial temperature of 500°C. 40 kg of water initially at 25°C is contained in a perfectly insulated tank. The metallic block is brought into contact with water. Both of them come to equilibrium. ... .kg-1, K-1is (A) -1.87 (B) 0 (C) 1.26 (D) 3.91
Last Answer : (B) 0
Description : Predict the entropy change in- (i) A liquid crystallizes into solid (ii) Temperature of a crystalline solid raised from 0K to 115K.
Last Answer : Ans. (i) Entropy decreases because molecules attain an ordered state. (ii) Entropy increases because from 0K to 115K average kinetic of moleculesincreases.
Description : What happens when frozen Jello melts?
Last Answer : it explodes of course
Description : Are tuna sandwiches/melts supposed to be cut in half diagonally?
Last Answer : Yeah, that is odd. Must be something regional. But in the end, it tastes the same, right?
Description : Sulphur melts to a mobile liquid at `119^(@)C` but becomes Viscous above `160^(@)C`. It is due to
Last Answer : Sulphur melts to a mobile liquid at `119^(@)C` but becomes Viscous above `160^(@)C` ... tangle together forming viscous sulphur D. All are correct
Description : Where do rock melts?
Last Answer : At depths of about 50 to 200 km below Earth's surface Rocks meltat depths at 50 and 200 km below the Earth's surface.
Description : What element melts at 1085 C?
Last Answer : Feel Free to Answer
Description : What happens to the mass of gold when a jeweler melts the gold to make jewelry?
Description : What happens to the particles in a substance as it melts?
Last Answer : The particles move more quickly and begin to move from place toplace
Description : Why does salt temp stay same temp when it melts?
Last Answer : The total kinetic energy of molecules must remain constant during changes of phase.
Description : How much current can flow through a piece if fuse wire before it melts?
Last Answer : What is the answer ?