Related Essays

  • H2o2 (G) + 1.2. What Is Entropy?

    Thre are some endothermic reaction that are spontaneous. For example : Br2(l) + Cl2(g)  2BrCl(g) H0 = 29,3 kJmol-1 H2O(s)  H2O(l) H0 =

  • Substance Specific Heat Capacity

    Some substances dissolve in some solutions and produce energy in the form of heat. These dissolution reactions are known as exothermic reactions. Example on ...

  • Describe The Pros And Cons Of Thermodynamics

    Thermodynamics deals with the relationship between heat and mechanical energy. There are four laws of thermodynamics. Zeroth law of thermodynamics – If two t...

  • The Second Law Of Thermodynamics: The Purposes Of Energy And Energy

    For instance if a copper wire is heated and plunged into a beaker full of cold water, the particles in the wire will transfer to the water until thermal equi...

  • The First And Three Laws Of Thermodynamics

    When conditions change the thermodynamic system will respond by changing its temperature, volume, pressure, or chemical make-up and will adjust accordingly ...

  • The Hot Ice Experiment

    Enthalpy (ΔH) if negative indicates an exothermic reaction. ΔH = energy used in bond breaking reactions − energy released

  • Lauric Acid Lab Report

    An exothermic reaction gives off energy in the form of heat, light or sound and can occur spontaneously. When used in a laboratory exothermic reactions may g...

  • Change In Enthalpy

    Therefore, the increase in temperature for acid-base reactions comes from water absorbing the heat that is released by the neutralization of the acid and bas...

  • Combustion Of Magnesium

    Throughout this lab the goal was to figure out the enthalpy of combustion of magnesium. Enthalpy (H) is the energy stored in a substance during its formation...

  • Calorimetric Determination Of Enthalpy Of Sodium Sulfate

    The reaction is nonspontaneous at low temperature. At the transition temperature of 31 ⁰C the free energy is low but still positive. The reaction is not spon...

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/21

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

21 Cards in this Set

  • Front
  • Back
what equation is this?

pH = pKa + log [A-]/[HA]
henderson - hosselbach equation
endergonic = ...
nonspontaneous
1st law of thermodynamics:
The internal energy or chemical bond energy, in the form of heat can be defined as the ... for the chemical reaction
enthalpy
delta H = delta E
2nd law of thermodynamics:
-all systems tend toward equilibrium.

at equilibrium, there is no ...
free energy
normally, a decrease in enthalpy (-delta H) would produce heat and would be spontaneous. The exception is with ... turning to ...
Heat is absorbed but it's still spontaneous due to an increase in total ...
ice
water
entropy (delta S)
3rd law of thermodynamics:
The ... content of a system can only be zero at 0 degrees K.
entropy
what are the driving forces for a reaction and which laws of thermodynamics include them?
enthalpy and entropy
1st and 3rd law
(-) delta H and (+) delta S

reaction is ...
spontaneous at all temperatures
(-) delta H and (-) delta S

reaction is ...
spontaneous only at temperatures below T = delta H/delta S
(+) delta H and (+) delta S

reaction is ...
spontaneous only at temperatures above T = delta H/delta S
(+) delta H and (-) delta S

reaction is ...
nonspontaneous at all temperatures
standard state (STP):

temp-
mole-
pH-
25 degrees celcius
1 mole in substrate and products
ph = 7
displacement from equilibrium is called the ..., which requires energy in the form of ATP
steady state
what is the ratio of products and reactants (substrates) for a chemical reaction in the steady-state called?
Mass Action Ratio (MAR)
if delta G is positive, then the reaction is thermodynamically (favorable or unfavorable)?
unfavorable
(+) delta E is (favorable or unfavorable)?
favorable
what is the ability to accept (affinity for) electrons?
reduction potential
to donate electrons is to be ...
oxidized
to accept electrons is to be ...
reduced
what is the ultimate acceptor of electrons (most positive Eo)?
Oxygen
for any reduction half-reaction, the more negative the Eo value, the greater the potential to ... electrons.

A more positive Eo value indicates a higher potential to ... electrons
donate
accept