How many calories of heat would you need to remove from one gram of water at 35 degrees Centigrade to completely freeze it

Q: A change in color of a hydrate salt after heating indicates the removal of water molecules. true or…

A: 1) In  the hydrate salt, the salt is coordinated to the water molecules and represented as!;…

Q: acetone has a vapor pressure of 187 torr at 20 degrees celsius. It freezes at negative 95 degrees…

A: Boiling point of acetone = 560C At this temperature, the vapor pressure of acetone = atmospheric…

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 in KJ is needed to convert 150 grams of frozen acetone at -100oC  to vapor at 80oC.…

A: We will write changes and then calculate heat of each to get total heat.

Q: Define the  Hydrogen  bonding in water ?

A:

Q: In which form of water are the water moleculesfarthest apart?

A: Given figure,

Q: ОН А B C

A: As the intermolecular forces increases boiling point increases

Q: If water has the highest latent heat of vaporization, why does a drop of alcohol make my hand feel…

A: latent heat of vaporization is the heat required to convert the one mole of liquid at its boiling…

Q: How much energy is released when 2.55kg of diethyl ether freezes?

A: We have to find the amount of energy released when 2.55kg of diethyl ether freezes.

Q: How is the polarity of a liquid generally related to its miscibility with water?

A:

Q: Water has a heat of fusion of 6 kJ/mol. How much heat is given off when 2.5 mol of water freezes?

A:

Q: How do phase changes of water entail the exchange of energy? (In other words, explain latent heat.)

A: Phase changes of water are accompanied by the exchange of latent heat. Even as heat is added or…

Q: Temperature (°C) -77.7 Selected Points Triple point Critical point Normal boiling point Normal…

A:

Q: How much heat must be lost to freeze 75.3 g of water at 11°C

A: The amount of heat required to increase the temperature of one gram of any material by one degree…

Q: How much water at its boiling point can be vaporized by adding 1.50kJ of heat?

A: Given that, q =  1.5 kJ heat is added to water at boiling point 1000C. Heat of vaporization of water…

Q: What is needed for a liquid to freeze?

A: Matter is anything that has mass and volume, which exist in material word. Three types of matter are…

Q: what happens to the boiling point of water due to the presence of hydrogen bonds and why does this…

A: In the case of water, hydrogen bonding, which is a special case of polar dipole forces exerts a very…

Q: Predict which phase water exists in at 100°C and 5.0 atm. What phase changes, if any, does I water…

A:

Q: How much energy is released when 65.8 g of water freezes?

A: At constant temperature when 1 kilogram of a solid is converted into liquid then heat released is…

Q: How much energy is released when 53.4 gg of water freezes?

A: The mass of water is = 53.4 g The heat of fusion for water is = 333.6 J/g

Q: In which form of water are the water moleculesfarthest apart?

A: There are three states of matter Solid Liquid Gas Now, lets see how molecules are associated with…

Q: Complete the cooling curve in the figure below and indicate on your drawing (1) the point on the…

A: Given phase diagram:

Q: The flow of energy. during Vaporizing is it like the energy flow with melting or during freezing And…

A: Vaporization is a process where energy is required to break the bonds holding a molecule in a…

Q: 1. Describe the nature of liquids by relating it with intermolecular attractive forces.

A: There are four major classes of interactions between molecules and they are all different…

Q: A motorist fill his radiator with an anti-freeze mixture that states that the mixture is good to -35…

A: Since, Kelvin temperature = ℃ temperature + 273 thus,

Q: Compound y has a heat of fusion of 361 J/g. The solid form has a specific heat capacity of 0.353…

A:

Q: Why are the freezing and boiling points of water higher than would be expected for a compound of its…

A: Water is composed of two atoms of hydrogen and one atom of oxygen. Boiling point is the temperature…

Q: Why does water expand when it freezes?

A: When water freezes, the hydrogen bonds push the water molecules farther apart from each other. This…

Q: How much energy is released when 65.8g of water freezes

A: First convert the given grams to moles.

Q: at what pressure is the boiling point of water the same as its freezing point

A:

Q: What type of intermolecular forces acts between molecules of water, and of HF, and of NH3 to cause…

A: Intermolecular forces:The force of attraction that acts between two different molecules is said to…