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today i woke up feeling depressed. my hippo just died and my gold had managed to consume the whole thing to the bone over night so if we could just not talk about combustion that would be much appreciated :) thanks
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∙ 12y ago
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What equation is used to calculate the free energy change a reaction?
Delta G (written triangle G) = Delta H -T Delta S
What is delta h in the equation delta g delta h - t delta?
The change in enthalpy between products and reactants in a reaction
How you can find delta h at different temperatures?
To calculate the enthalpy change or heat energy of a phase change, use the formula q=m(heat of (fusion, vaporization, etc...)). Make sure to use the formula q=mc(delta T) to calculate the heat energy for the temperature changes in between phase changes. Add up all of the q values and you have your enthalpy change.
In terms of intermolecular forces why does methanol mix easily with water whilst octane does not?
Hydrogen bridges (C-O-H) in methanol and water (H-O-H) 'like' each other (attraction!) and octane doesn't have any. (H-C and C-C are covalent, non-polar).
Is octane an element a compound a mixture or not matter?
Octane is a compound. octane + O2 = CO2 + H2O + Energy, You can tell by the inputs and outputs. Octane and Oxygen inputs and Carbon dioxide and water outputs, means Octane must consist of hydrogen H and carbon C, thus a compound not an element.
What is the Delta H value for liquid octane?
10,800 kJ (per 2 moles of octane; the balanced chemical equation)
What equation is used to calculate the free change of a reaction?
Delta G (written triangle G) = Delta H -T Delta S
What equation is used to calculate the free energy change of a reaction?
Delta G (written triangle G) = Delta H -T Delta S
What equation is used to calculate the free energy change a reaction?
Delta G (written triangle G) = Delta H -T Delta S
How is the delta H fusion used to calculate volume of liquid?
It is not. The density and mass would be used to find the volume.
If you have the heat of formation of a substance at a given temperature how do you calculate its heat of formation at a different temperature?
Say u know heat of formation at temperature Ta and u want to calculate it at a temperature Tb Delta H(at Tb) = Delta H(at Ta) + integral of (Heat capacity) from Ta to Tb
What is delta h in the equation delta g delta h - t delta?
The change in enthalpy between products and reactants in a reaction
What is delta h in the equation delta g delta h - t delta s?
The change in enthalpy between products and reactants in a reaction
How you can find delta h at different temperatures?
To calculate the enthalpy change or heat energy of a phase change, use the formula q=m(heat of (fusion, vaporization, etc...)). Make sure to use the formula q=mc(delta T) to calculate the heat energy for the temperature changes in between phase changes. Add up all of the q values and you have your enthalpy change.
What is the delta H deg f of potassium?
What is the delta H deg f of potassium?
Which molecule is octane?
hjh hjhjjh h
What do the symbols mean Delta Hr Hf Hc Hn Ha in chemistry btw i know theyre enthalpy changes?
delta Hr is the enthalphy change of a reaction delta Hf is the enthalpy of formation where one mole of a substance is formed ( generally in its naturally occurring physical state) delta Hc is the enthalpy of combustion where one mole of a substance in its standard state undergoes combustion delta Hn is the enthalpy of neutralization where one mole of H+ reacts with OH- to form one mole of H2O delta Ha is the enthalpy of atomization where a molecule splits to form its neutral atomic components
