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Why does it take a lot of energy to change the temperature of water to make it vaporize?
Liquid water has an unusually high specific heatcapacity. It is one of the highest of any substance known. But, that's just another way of saying that it is hard to change water's temperature--it doesn't explain why water has a high heat capacity.Thermal energy is stored in liquid water as kinetic energy (molecular motion and rotation), as kinetic and potential energy in the vibrations of the inter-atomic bonds and, in particular, as kinetic and potential energy in the vibrations of the hydrogen bonds between molecules (H2O is a polar molecule with very strong hydrogen bonds). Much of the thermal energy that goes into water is stored as potential energyand, since temperature is a measure of only the average kinetic energy of the molecules, doesn't contribute to raising its temperature.
Why does water boil at a higher temperature than butane?
the Molecular Structure of Water (H₂O) is a polar molecule with a bent shape, consisting of two hydrogen atoms and one oxygen atom. Butane (C₄H₁₀), on the other hand, is a nonpolar molecule composed of four carbon atoms bonded to ten hydrogen atoms. The polar nature of water molecules allows them to form stronger intermolecular forces compared to the nonpolar butane molecules. Intermolecular Forces: Water molecules are held together by hydrogen bonds, which are relatively strong electrostatic attractions between the positively charged hydrogen atom of one water molecule and the negatively charged oxygen atom of another water molecule. These hydrogen bonds require more energy to break, resulting in a higher boiling point for water. Butane molecules are held together by weaker van der Waals forces, which are temporary dipole-dipole interactions between nonpolar molecules. As a result, butane boils at a lower temperature compared to water.
How much energy to boil a hard boil egg?
Entropy is a thermodynamic term. Re the hard boiling of an egg: You are going to a more "ordered" state , i.e., positive entropy. However, entropy in this case is overwhelmed by the -∆H which is the negative heat provided by the proteins hydrogen bonding. Thus, the energy driving force is the important term and not the entropy in this case.
What water boils faster salt water or sugar water?
The question is a matter of boiling point elevation. Boiling point elevation is a colligative property of water, meaning it depends on only the amount of substance dissolved in the water, not the type of substance. Thus, because table salt dissociates into its constitutive ions (Na+ and Cl-) whereas sugar does not, the same amount of table salt will increase the bp of water to a higher value. Because the b.p. of salt water would then be higher than the bp OS sugar water, it will take longer for the salt water to boil. Source : Me (maaaaad educated)
What happens when hydrogen is combined with oxygen?
When two oxygen and one hydrogen is mixed together, it forms water, or H2O. NASA uses a combination of hydrogen and oxygen in their fuel tanks to ensure lift-off so it produces a large amount of energy in the right proportions as the reaction is very exothermic. If you mix hydrogen gas and oxygen gas they don't react at all unless you heat them.
How does a soft egg become hard?
you boil it in boiling water
How are hydrogen bonds different from covalent bonds?
Hydrogen Bonds can be broken easy, Covalent Bonds are hard to break apart, but both are needed to hold different parts of DNA strands together
Why is surface tension hard?
Surface tension of water creates a lot of resistance due to hydrogen bonding. Typically, hydrogen bonds are fairly weak. However, they like to bond on all sides. Thus, at the surface of the water, the bonds on top have nothing to bond to, so they stretch to the sides, strengthening the side-to-side bonds between water molecules on the surface.
What type of bond is very hard and brittle?
ionic bonds
What is the best way to hard boil eggs?
boiled water
How do you turn hard water soft?
You can use a water filter(Brita is best!!) Or you can boil or distill it.
Why do we need to hard boil and egg?
An egg, a heat source, a container, water
What properties emerge as a result of the water molecule structure?
Water's structure facilitates hydrogen bondingOxygen bound to two hydrogen atoms by two single covalent bonds= stableHydrogen bonds- weak chemical associations= most outstanding chemical propertiesPartially negative O and partially positive H = 5-10% of covalent bondO electronegativity > H so bonds polar= underlies water's chemistry and chemistry of life
Which of these substances contain molecules that will not form hydrogen bonds hydrogen hydrogen Fluoride Water or Ammonia?
Its hard to answer your question since you did not use commas. But... if the question is hydrogen, hydrogen fluoride, water or Ammonia then.. Hydrogen...is diatomic naturally so I'm not sure which you are referring too. It can not hydrogen bond with its self but it could act as a hydrogen donor and something like an ether could act as the proton acceptor. Then they could both participate in hydrogen bonding. Same answer as above goes from Ammonia. HF, can hydrogen bond with it's self and other molecules containing fluorine, Nitrogen or Oxygen. Same answer as above goes for water.
Are hydrogen bonds strong?
The term hydrogen bonding refers to a weak interaction between two molecules that contain an H atom bonded to a very electronegative atom, such O, N, and F. Hydrogen bonding does not occur within molecules, but rather between to molecules.Of course, the atoms of hydrogen can also form regular covalent or ionic bonds with other atoms to form molecules, and so these are in some sense hydrogen bonds, but that's not usually what people mean when they say the term "hydrogen bond."See the Web Links for more information about hydrogen bonding.
Why does it take a lot of energy to change the temperature of water to make it vaporize?
Liquid water has an unusually high specific heatcapacity. It is one of the highest of any substance known. But, that's just another way of saying that it is hard to change water's temperature--it doesn't explain why water has a high heat capacity.Thermal energy is stored in liquid water as kinetic energy (molecular motion and rotation), as kinetic and potential energy in the vibrations of the inter-atomic bonds and, in particular, as kinetic and potential energy in the vibrations of the hydrogen bonds between molecules (H2O is a polar molecule with very strong hydrogen bonds). Much of the thermal energy that goes into water is stored as potential energyand, since temperature is a measure of only the average kinetic energy of the molecules, doesn't contribute to raising its temperature.
Why does water boil at a higher temperature than butane?
the Molecular Structure of Water (H₂O) is a polar molecule with a bent shape, consisting of two hydrogen atoms and one oxygen atom. Butane (C₄H₁₀), on the other hand, is a nonpolar molecule composed of four carbon atoms bonded to ten hydrogen atoms. The polar nature of water molecules allows them to form stronger intermolecular forces compared to the nonpolar butane molecules. Intermolecular Forces: Water molecules are held together by hydrogen bonds, which are relatively strong electrostatic attractions between the positively charged hydrogen atom of one water molecule and the negatively charged oxygen atom of another water molecule. These hydrogen bonds require more energy to break, resulting in a higher boiling point for water. Butane molecules are held together by weaker van der Waals forces, which are temporary dipole-dipole interactions between nonpolar molecules. As a result, butane boils at a lower temperature compared to water.
