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What is the meaning of a value of and ndash400 kJ in a reaction?
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What is the accepted value for the heat of solution NH4Cl?
The accepted value for the heat of solution of NaOH is -44.2 kJ/mol
How much CaCO3 could be decomposed by 90 000 kj of heat energy?
delta H = (delta Ho f products) - (delta Ho f reactants) = ((1 mole CaO)(-636.6 kJ/mole) + (1 mole CO2)(-393.5 kJ/mole)) - (1 mole CaCO3)(-1206.9 kJ/mole) = -1030.1 kJ - (-1206.9 kJ) = +176.8 kJ This reaction is highly endothermic (positive delta H) at 25 C.
How many kj in a cubic meter of natural gas?
The calorific value of natural gas is approximately 11 kj per metre3. The exact value will depend of the compounds present in it.
At which temperature would a reaction with AH = -92 kJ/mol, AS = -0.199kJ/(mol·K) be spontaneous?
the answer is 400
What can be said about a reaction with H 620 kJmol and S -0.46 kJ(molK)?
it can never be spontanious
What would be the final value for the enthalpy of reaction you use for this intermediate reaction?
-2820 kJ APEX
If you need to reverse the following reaction and multiply it by 2 in order for it to be an intermediate reaction in a Hess's law problem what would be the final value for the enthalpy of reaction yo?
2820 kJ
If you need to reverse the following reaction in order for it to be an intermediate reaction in a Hess's law problem what would be the final value for the enthalpy of rea?
286 kJ
If you need to reverse the following reaction and multiply it by 2 in order for it to be an intermediate reaction in a Hess's law problem what would be the final value for the enthalpy of reaction you?
572 kJ (just multiply like you would in algebra)
If you need to reverse the following reaction in order for it to be an intermediate reaction in a Hess's law problem what would be the final value for the enthalpy of reaction you use for this in?
1410 kJ
If a temperature increase from 22.0 to 34.0 triples the rate constant for a reaction what is the value of the activation barrier for the reaction?
69.0kJ/mol
What begins the chemical reaction of a safety match?
ikjhhmhj,kj,kj
What is the activation energy of peroxodisulphate and iodide reaction?
From an experiment I did in my chemistry lab, I got a value of 52.0 kJ. But I have no idea what the "true" Ea is.
What is the meaning of KJ?
kindjoyful
What was the heat of reaction per mole of water produced for the neutraliztion reaction?
-55.90 kJ
What form a spontaneous reaction at 298 K?
H = 28 kJ/mol, S = 0.109 kJ/(molK)
Use the reaction I2(s) I2(g), H = 62.4 kJ/mol, S = 0.145 kJ/(molK), for this question What can be said about the reaction at 500 K?
It is spontaneous.
