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Please help me answer these four parts asap! Consider the following balanced thermochemical equation: 2 H2(g) + O2(g) -> 2 H2O(l) ΔH = -572 kJ Based on this, answer the following. Show your work/explain your reasoning. a. Is this reaction endothermic or exothermic? Explain your reasoning. (BT2: Understand) b. How much heat (in kJ) is released when 5 moles of H2O are produced? (BT3: Apply) c. How much heat (in kJ) is released when 5 grams of H2O are produced? d. What mass of hydrogen would need to react to produce 5.0 x 10^4 kJ of heat? (BT3: Apply) 

          Please help me answer these four parts asap! Consider the following balanced thermochemical equation: 2 H2(g) + O2(g) -> 2 H2O(l) ΔH = -572 kJ Based on this, answer the following. Show your work/explain your reasoning. a. Is this reaction endothermic or exothermic? Explain your reasoning. (BT2: Understand) b. How much heat (in kJ) is released when 5 moles of H2O are produced? (BT3: Apply) c. How much heat (in kJ) is released when 5 grams of H2O are produced? d. What mass of hydrogen would need to react to produce 5.0 x 10^4 kJ of heat? (BT3: Apply)
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Chemistry: Structure and Properties
Chemistry: Structure and Properties
Nivaldo Tro 2nd Edition
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Please help me answer these four parts asap! Consider the following balanced thermochemical equation: 2 H2(g) + O2(g) -> 2 H2O(l) ΔH = -572 kJ Based on this, answer the following. Show your work/explain your reasoning. a. Is this reaction endothermic or exothermic? Explain your reasoning. (BT2: Understand) b. How much heat (in kJ) is released when 5 moles of H2O are produced? (BT3: Apply) c. How much heat (in kJ) is released when 5 grams of H2O are produced? d. What mass of hydrogen would need to react to produce 5.0 x 10^4 kJ of heat? (BT3: Apply)
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Transcript

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00:01 Dear students, for this reaction, s8 plus h2 gives rise to h2 s, enthalpyene is given minus 20 .2 kilojoules.
00:11 The first question is, is this an exothermic or endothermic reaction? since here, delta h value is negative, therefore it is an exothermic reaction.
00:24 Coming to the second part, what is enthalpy of reaction for the reverse reaction? we know if the forward reaction is exothermic, the reverse reaction will be endothermic.
00:36 That means, delta h will be naturally, delta h for the reverse reaction will be plus 20 .2 kilojoules.
00:48 Then the third part is what is delta h when 3 .1 mole of acid reacts.
00:54 Now when 1 .8 mole reacts, we are getting delta h is this much...
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