how many kcal of heat are released when freezing 5.00 kg of water at 70.0 degrees celsius to ice at "-15.0" degrees celcius

Q: How much EKG is required to melt 12.32 g of ice?

A: H2O (s) ---> H2O (l)  ∆H = 6.02 KJ

Q: Calculate the heat released when freezing 25.0 g of water at 0 °C.

A: When water freezes it gives up some of the water's energy. The energy that is given up is the latent…

Q: How much heat is needed to boil 785 g of water that is at 17.6 ºC?

A: To find out the total heat required for boiling the 785g water at 17.6-degree centi.... following…

Q: Water melts at 0°C. A student observes a liquid that melts at 10°C. Which conclusion can the student…

A: Melting point is the temperature at which a solid melts.  It depends on - Composition of molecule…

Q: What is the state of matter if the particles are spread out and have little to no inter-molecular…

A: We know about the state of matter consist of generally solid, gas and liquid.  Among them, solid is…

Q: At the top of Mount Everest, water boils at 70  C. Explain.

A: Boiling point is temperature at which vapour pressure of liquid become equal to atmospheric pressure…

Q: How much heat is given off when 32.0 grams of steam cools from 110°C to ice at -40°C?

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Q: What is the mass of a sample of water at 100 degrees Celsius resulting from the release of 3,820…

A: Since the heat of condensation of water = 40.65 kJ/mol  And since 1 KJ = 239 cal Hence 40.65 KJ/mol…

Q: What is the name of the phase change that occurs when ice left at roomtemperature changes to liquid…

A: Ice is the solid form of H2O. Water is the liquid form of H2O.

Q: Which of the following liquids has the higher vapor pressure at 25 °C: water or mercury?

A: The temperature at which the vapor pressure at the surface of a liquid is equal to the pressure…

Q: How many grans of liquid CFCu are needed to cool 226 gof water from 49.9 to 205 C? The specific heat…

A:

Q: Calculate the amount of heat needed to melt 50.6 g of solid octane (C3H18) and bring it to a…

A: Given that -  Mass of solid octane = 50.6 g  Temperature = 52.2°C    Theoretically , the value of…

Q: how much heat in joules is absorbed when 35.6 g of ice melts?

A: When a solid heated at its melting point it converts into the liquid state. The energy absorbed in…

Q: Click on the segment of the diagram where the temperature is equal to the melting point. H в с C A…

A: Correct answer is B-D segment or point C. At temperature equal to melting point physical state is…

Q: Vhat is the final temperature, how much water is there, and how much ice is there if 824g of ce at…

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Q: .5000 moles of steam at 200 degrees celsius was chilled in a ultra low temperature freezer to -90…

A: Given, moles of steam = 0.50 mol

Q: kilocalories to freeze 245 g of water

A: Weight of water =245 gm we know heat of fusion of water=80 cal/gm

Q: one gram of gas to liquid

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Q: How many calories are released when 10.0 g of steam condenses?

A: 1 g of water for conversion of steam requires 540 calories.

Q: How many joules of energy must be removed from 175 g of water at 22.2 °C to form ice at 0 °C?

A: Mass of water = 175 g  Initial temperature = 22.2 °C  Final temperature = 0°C  The amount of energy…

Q: How much heat is needed to melt 3kg of ice?

A:

Q: AT f water from 6°C to 56 °C g of ice that begins at -10 °C

A: Specific Heat capacity of ice ( C ) = 2.01J°C-1g-1  You can used the formula :  Heat(Q) = mass(m) •…

Q: How much heat is required to melt 62.0 g of ice at its melting point? Express your answer…

A: Given, amount of ice =62.0 gramwe are asked to calculate the heat required to melt 62.0 gram of ice…

Q: Ocean water freezes around -2°C. At what temperature would

A: Given freezing point = -2°C

Q: a. Predict which of the following substances would have the lowest freezing point. O CO2 O CO ON2 b.…

A: Definition. Freezing point is the temperature at which a liquid becomes a solid at normal…

Q: An ice cube from a 5°C freezer is placed on a table in the schoolyard. What will happen to the ice…

A: The temperature in the school yard is 10 0C. The melting point of water is 0 0C.

Q: A 100.0-mL sample of water is heated to its boiling point. How much heat (in kJ) is required to…

A: Density of water = 1.00 g/mL Volume of water = 100 mL Heat of vaporization of water = 40.7 kJ/mol…

Q: Can ice be colder than 0 degrees

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Q: How many joules are required to melt 100 grams of water?

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Q: How many grams of ice at -15.0degrees celsius must be added to 50.0 mL of water at 80degrees celsius…

A: We know that the system at higher temperature loses heat and the system which is at lower…

Q: How many grams of ice are needed to decrease the temperature of 50.0 mL of water by 5.0 degrees…

A: The solution is given below -

Q: Caculate the mass of water that can be vaporized at its boiling point with 200kj of heat

A: The moles of water that can be vapourised is determined first by using the given heat value and the…

Q: Calculate the heat, in kilocalories, that is absorbed if 149 g of ice at 0.0 ∘C is placed in an ice…

A: Given data,  Mass of ice (m) = 149 g  Heat of fusion for water (lf) = 80 cal/g = 334 J/g Specific…

Q: 5. Is the melting temperature of a substance different from its freezing temperature? Define the…

A: The melting point of a substance is same as that of its freezing point. At this particular…

Q: Melting point data of salt and sugar are noted in the table above. Which of the following best…

A: Option A) When sodium chloride melts, intramolecular attractions are being broken. These are…

Q: Calculate the heat change in joules for melting 12.0 g of ice at 0 ∘C

A:

Q: how many joules of energy are absorbed when 36.2 grams of water is evaporated

A: The phase change energy formula is, q=n∆Hvap where, q = energy n = moles ∆Hvap = enthalpy of…

Q: How many calories would be required to melt 45g of water?

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Q: How many joules of energy must be removed from 152 g of water at 18.5 °C to form ice at 0 °C?

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Q: What is the effect of temperature on(i) density(ii) vapors pressure of a liquid?

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Q: What are the strongest attractive forces that must be overcome to

A: Attractive forces are the force by which one object attracts another. Intermolecular forces are the…

Q: The graph below represents the heating curve of a substance that starts as a solid below its…

A: The question is based on the concept of heating curve. we have been given a heating curve in which…

Q: a) melting of ice at 25° C and 1 atm b) evaporation of water at 200° C and1 atm c) condensation of…

A: Answer - The correct option is - ( c)   Solution - According to the question - Given - A reversible…

Q: How much heat in kilocalories is absorbed when 22.0 g of 2-propanol evaporates after being rubbed on…

A: The heat of vaporization of a substance is defined as the amount of heat required to vaporize 1 g of…

Q: How much energy must be supplied to convert 125g of ice at 0 degrees celcius to 125g of water at 91…

A: We will be using two types of heat in the whole process:   Q1  = Heat required to convert the ice at…

Q: A liquid placed in a test tube has the meniscus shown above. The types of forces that create this…

A:

Q: Which phases change is an endothermic process? O freezing O evaporation O condensation

A:

Q: A 12 gram sample of water is frozen. How many calories of heat must be removed in order to freeze…

A: Freezing water at 0 degrees Celsius: It also takes 80 calories to freeze 1 gram of water.