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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.
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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 determine whether a reaction took place?
Use the following equation: delta G = delta H - T*deltaS. A reaction is spontaneous if delta G is negative. A reaction will always be spontaneous (under any temperature) only if the change in enthalpy (delta H) is negative and the change in entropy (delta S) is positive. If this is not the case, the reaction will only be spontaneous (negative delta G) for a range of temperatures (or could be always non-spontaneous)
Thermodynamic properties for a chemical reaction in which amino acids are linked to form a protein?
+delta H, -delta S, +delta G
What is the change in entropy (S) when an icicle melts at 2 and degC?
Delta S= Delta H
What does the delta h of a reaction represent?
Either the change (which the delta refers to) of the height (which the h represents).
Is the process of KNO3 dissolving in water spontaneous at all temperatures studied?
yes delta s is positive, delta h is negative making delta g negative at all temps
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
Where can I find a list of H Hargrove paintings from 1981?
I have a painting of the Memphis Delta Queen it says its by H. Hargrove is this true
What is the delta H deg f of potassium?
What is the delta H deg f of potassium?
Is Delta S is the change in enthalpy a measure of randomness?
No, delta s is the change in entropy. Delta H is the change in enthalpy, the amount of heat used in a system. Entropy and enthalpy are different, but closely related.
Delta H equals delta E plus delta nRT prove?
Yes
What determine whether a reaction took place?
Use the following equation: delta G = delta H - T*deltaS. A reaction is spontaneous if delta G is negative. A reaction will always be spontaneous (under any temperature) only if the change in enthalpy (delta H) is negative and the change in entropy (delta S) is positive. If this is not the case, the reaction will only be spontaneous (negative delta G) for a range of temperatures (or could be always non-spontaneous)
What is delta H for HCl aq?
the delta h for x hydrogen and x chlorine because it is aq and dissociates in water into h+ ions and cl- ions
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.
What is delta S in the equation delta G delta H - T delta S?
The change in enthalpy between products and reactants in a reaction
What does it mean when delta H is a negative number?
it means that heat is released during the reaction and a + delta H means that heat is required/absorbed.
