URGENT chem help!

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Kittymity
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a)Calculate the enthalpy change for the reaction.
b )Calculate the molar entropy change for the reaction.
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Kittymity
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(Original post by Kittymity)
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a)Calculate the enthalpy change for the reaction.
b )Calculate the molar entropy change for the reaction.
How do you do it as it doesn't give you the temperature
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BlueChicken
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(Original post by Kittymity)
How do you do it as it doesn't give you the temperature
What do you know about the superscripts on the S and the delta H?
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CatInTheCorner
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(Original post by Kittymity)
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a)Calculate the enthalpy change for the reaction.
b )Calculate the molar entropy change for the reaction.
Draw yourself a reaction cycle, put in the numbers and make sure your arrows are in the right direction, then work out moles and divide the entropy by that
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p!nkpanther
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(Original post by Kittymity)
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a)Calculate the enthalpy change for the reaction.
b )Calculate the molar entropy change for the reaction.
is enthalpy change not just products-reactants, so u end up with -46x2= 92kjmol-1
and then use that same formula for the molar entropy, so (2x193)-((192)+(131x3))= -199kjmol-1
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Kittymity
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(Original post by p!nkpanther)
is enthalpy change not just products-reactants, so u end up with -46x2= 92kjmol-1
and then use that same formula for the molar entropy, so (2x193)-((192)+(131x3))= -199kjmol-1
Then why do u need the 92?
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