Thermodynamics and energy, Biology

Assignment Help:

Thermodynamics and Energy

  • 2 types of energy (kinetic and potential)
  • Work is the transfer of energy from one place to another
  • Energy isn't lost, only converted è first law of thermodynamics
  • Bond energy is the measure of the stability of a covalent bond
  • Activation energy à the energy it takes to reach the transition state
  • Transition state à the temporary condition in which the bonds of the reactants are breaking and the bonds of the products are forming

 

 

The Combustion Accountant

1.      Draw out molecule to see all bonds

2.      Take each type of bond

a.      Energy produced x # of bonds

3.      Add the energy of the molecule

4.      Do this for all reactants and then again for all products

5.      Add the energy of the reactants together (same with products)

6.      Take the ΔHproducts - ΔHreactants = 'actual' yeild

7.      Find the theoretical yield (in appendix or given)

8.      Theoretical - actual / actual  x 100%  = percent difference

 

  • ΔH->enthalpy à energy change in a reaction (negative is exothermic and positive is endothermic)
    • Exogonic reactions are more spontaneous then endogonic ones
  • ΔS-> Entropy à the measure of the disorder in a system
    • Increase in entropy is favoured
  • Gibbs free energy ΔG
    • Useful energy that can perform work
  • Energy will be lost as heat when converted è second law of thermodynamics
  • Metabolic processes are reversible

 


Related Discussions:- Thermodynamics and energy

Non-renewable energy sources, In many countries of Asia biomass contributes...

In many countries of Asia biomass contributes l argely as a source of primary energy. People in rural areas at the peripheries of forests, continue to collect fuel wood from adjace

How far from the building should the fire hose be located, A fire hose ejec...

A fire hose ejects a stream of water at an angle of 38.8 ° above the horizontal. The water leaves the nozzle with a speed of 26.6 m/s. Assuming that the water behaves like a projec

Define end and the beginning of the first interphase period, Q. What are th...

Q. What are the events that mark the end and the beginning of the first interphase period? What happens inside the cell in this period? The initial interphase period is the G1.

How many bones in the human face, Explain how many bones in the human face?...

Explain how many bones in the human face? Ans) 14 bones are present in human face and these bones are known as sepio

Entry of pollen tube into the embryo sac, Entry of Pollen Tube into the Emb...

Entry of Pollen Tube into the Embryo Sac The pollen tube enters the embryo sac through the filiform apparatus of ong of the synergids. Generally, one of the synergids degenera

Give the biological effects of aflatoxin, Q. Give the biological effects of...

Q. Give the biological effects of aflatoxin and List the various natural toxins present in food? Biological effects of aflatoxin include hepatotoxicosis, carcinogenesis and liv

Explain the term - neurochemical manipulations, Explain the term - Neuroche...

Explain the term - Neurochemical Manipulations Neurochemical and immunological methods have been used to identify groups of neurons in the central nervous system that use speci

Types of aortic stenosis-aortic stenosis-valve disease, Types of Aortic Ste...

Types of Aortic Stenosis:  Obstruction to left ventricular outflow is commonly at the valvar level. Less commonly it is at the sub valvar or supra valvar level. Sub valvar ob

Matter of gene control and imprinting, Differentiation is largely a matter ...

Differentiation is largely a matter of gene control and imprinting (CH3) plays a role, but ___ may also play a role.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd