Gratitude Quotes That Come Straight From the Heart

Gratitude Quotes That Come Straight From the Heart Jean Baptiste Massieu, the famous deaf educator, made a statement that is now considered a French proverb. He said, Gratitude is the memory of the heart. Indeed, appreciation comes when you feel grateful from the depths of your heart. The head keeps an account of all the benefits you received and gave. But the heart records the feelings of appreciation, humility, and generosity that one feels when someone showers you with kindness. In addition, gratitude and empathy are some of the attitudes that can help you achieve happiness, according to five psychology studies that can help restore your faith in humanity.   Express Gratitude at Every Opportunity Even a small act of kindness deserves a thanks. You cannot weigh the nobility of the act against intentions to decide whether or not to show your gratitude. So what if your friend helped you get a job only because he wanted you to return the favor? So what if you think that he could have helped you get a better job? It is your moral obligation to express gratitude. In the words of Alfred Painter, saying thank you is more than good manners. It is good spirituality. Ralph Marston Make it a habit to tell people thank you. To express your appreciation sincerely and without the expectation of anything in return. Truly appreciate those around you, and you’ll soon find many others around you. Truly appreciate life, and you’ll find that you have more of it. Maya Angelou I want to thank you, Lord, for life and all that’s in it. Thank you for the day and for the hour, and the minute. Toni Mont To say thank you is in recognition of humanity. Joseph Adisson Gratitude is the best attitude. There is not a more pleasing exercise of the mind than gratitude. It is accompanied with such an inward satisfaction that the duty is sufficiently rewarded by the performance. Fred De Witt Van Amburgh None is more impoverished than the one who has no gratitude. Gratitude is a currency that we can mint for ourselves, and spend without fear of bankruptcy. Edwin Arlington Robinson Two kinds of gratitude: The sudden kind we feel for what we take; the larger kind we feel for what we give. Lionel Hampton Gratitude is when memory is stored in the heart and not in the mind. Oscar Wilde The smallest act of kindness is worth more than the grandest intention. James Matthew Barrie Those who bring sunshine to the lives of others cannot keep it from themselves. Gordon T. Watts The depth and the willingness with which we serve is a direct reflection of our gratitude. John Wooden Things turn out best for people who make the best of the way things turn out. John F. Kennedy As we express our gratitude, we must never forget that the highest appreciation is not to utter words, but to live by them. Alice Walker Thank you is the best prayer that anyone could say. I say that one a lot. Thank you expresses extreme gratitude, humility, understanding. Courtland Milloy Nothing purchased can come close to the renewed sense of gratitude for having family and friends. Benjamin Franklin To the generous mind, the heaviest debt is that of gratitude, when it is not in our power to repay it. Ralph H. Blum There is a calmness to a life lived in gratitude, a quiet joy. Melody Beattie Gratitude unlocks the fullness of life. It turns what we have into enough, and more. It turns denial into acceptance, chaos to order, confusion to clarity. It can turn a meal into a feast, a house into a home, a stranger into a friend. Terri Guillemets As each day comes to us refreshed and anew, so does my gratitude renew itself daily. The breaking of the sun over the horizon is my grateful heart dawning upon a blessed world. G. B. Stern Silent gratitude isnt much use to anyone.

Bond Dissociation Energy Definition

Bond Dissociation Energy Definition Bond dissociation energy is defines as the amount of energy which is required to homolytically fracture a chemical bond. A homolytic fracture usually produces radical species. Shorthand notation for this energy is BDE,  D0, or  DH °. Bond dissociation energy is often used as a measure of the strength of a chemical bond and to compare different bonds. Note the enthalpy change is temperature dependent. Typical units of bond dissociation energy are kJ/mol or kcal/mol. Bond dissociation energy may be measured experimentally using spectrometry, calorimetry, and electrochemical methods. Key Takeaways: Bond Dissociation Energy Bond dissociation energy is the energy required to break a chemical bond.It is one means of quantifying the strength of a chemical bond.Bond dissociation energy equals bond energy only for diatomic molecules.The strongest bond dissociation energy is for the Si-F bond. The weakest energy is for a covalent bond and is comparable to the strength of intermolecular forces. Bond Dissociation Energy Versus Bond Energy Bond dissociation energy is only equal to bond energy for diatomic molecules. This is because the bond dissociation energy is the energy of a single chemical bond, while bond energy is the average value for all the bond dissociation energies of all bonds of a certain type within a molecule. For example, consider removing successive hydrogen atoms from a methane molecule. The first bond dissociation energy is 105 kcal/mol, second is 110 kcal/mol, third is 101 kcal/mol, and final is 81 kcal/mol. So, the bond energy is the average of the bond dissociation energies, or 99 kcal/mol. In fact, the bond energy doesnt equal the bond dissociation energy for any of the C-H bonds in the methane molecule! The Strongest and Weakest Chemical Bonds From bond dissociation energy, its possible to determine which chemical bonds are strongest and which are weakest. The strongest chemical bond is the Si-F bond. The bond dissociation energy for F3Si-F is 166 kcal/mol, while the bond dissociation energy for H3Si-F is 152 kcal/mol. Th reason the Si-F bond is believed to be so strong is because there is a significant electronegativity difference between the two atoms. The carbon-carbon bond in acetylene also has a high bond dissociation energy of 160 kcal/mol. The strongest bond in a neutral compound is 257 kcal/mol in carbon monoxide. There is no particular weakest bond dissociation energy because weak covalent bonds actually have energy comparable to that of intermolecular forces. Generally speaking, the weakest chemical bonds are those between noble gases and transition metal fragments. The smallest measured bond dissociation energy is between atoms in the helium dimer, He2. The dimer is held together by the van der Waals force and has a bond dissociation energy of 0.021 kcal/mol. Bond Dissociation Energy Versus Bond Dissociation Enthalpy Sometimes the terms bond dissociation energy and bond dissociation enthalpy are used interchangeably. However, the two are not necessarily the same. The bond dissociation energy is the enthalpy change at 0 K. The bond dissociation enthalpy, sometimes simply called bond enthalpy, is the enthalpy change at 298 K. Bond dissociation energy is favored for theoretical work, models, and computations. Bond enthalpy is used for thermochemistry. Note that most of the time the values at the two temperatures are not significantly different. So, even though enthalpy does depend on temperatures, ignoring the effect doesnt usually have a big impact on calculations. Homolytic and Heterolytic Dissociation The definition of bond dissociation energy is for homolytically broken bonds. This refers to a symmetrical break in a chemical bond. However, bonds can break asymmetrically or heterolytically. In the gas phase, the energy released for a heterolytic break is larger than for homolysis. If a solvent is present, the energy value drops dramatically. Sources Blanksby, S.J.; Ellison, G.B. (April 2003). Bond dissociation energies of organic molecules. Accounts of Chemical Research. 36 (4): 255–63. doi:10.1021/ar020230dIUPAC, Compendium of Chemical Terminology, 2nd ed. (the Gold Book) (1997).Gillespie, Ronald J. (July 1998). Covalent and Ionic Molecules: Why Are BeF2 and AlF3 High Melting Point Solids whereas BF3 and SiF4 Are Gases?. Journal of Chemical Education. 75 (7): 923. doi:10.1021/ed075p923Kalescky, Robert; Kraka, Elfi; Cremer, Dieter (2013). Identification of the Strongest Bonds in Chemistry. The Journal of Physical Chemistry A. 117 (36): 8981–8995. doi:10.1021/jp406200wLuo, Y.R. (2007). Comprehensive handbook of chemical bond energies. Boca Raton: CRC Press. ISBN 978-0-8493-7366-4.