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SOLVED:The following reaction is exothermic: (a) Write a balanced equation for the reaction. (b) What are the signs of ΔH and ΔS for the reaction? (c) Is the reaction likely to be spontaneous at low temperatures only, at high temperatures only, or at all temperatures? Explain.

SOLVED:The following reaction is exothermic: (a) Write a balanced equation for the reaction. (b) What are the signs of ΔH and ΔS for the reaction? (c) Is the reaction likely to be spontaneous at low temperatures only, at high temperatures only, or at all temperatures? Explain.

2019年11月12日

SOLVED: Potassium chlorate and 41.38 kJ are combined, producing an aqueous solution of potassium chlorate. Write the complete balanced thermochemical equation. Indicate whether the reaction is exothermic or endothermic. Calculate the amount of heat required to produce 1250 cg of product.

SOLVED: Potassium chlorate and 41.38 kJ are combined, producing an aqueous solution of potassium chlorate. Write the complete balanced thermochemical equation. Indicate whether the reaction is exothermic or endothermic. Calculate the amount of heat required to produce 1250 cg of product.

已浏览 101 次2021年10月24日

SOLVED: Consider the following balanced thermochemical equation for a reaction sometimes used for H2S production: 1/8 S8(s) H2(g) âH2S(g) ÎHrxn = â20.2 kJ (a) Is this an exothermic or endothermic reaction? exothermic endothermic (b) What is ÎHrxnfor the reverse reaction? kJ (c) What is ÎH when 2.20 mol of S8reacts? kJ

SOLVED: Consider the following balanced thermochemical equation for a reaction sometimes used for H2S production: 1/8 S8(s) H2(g) âH2S(g) ÎHrxn = â20.2 kJ (a) Is this an exothermic or endothermic reaction? exothermic endothermic (b) What is ÎHrxnfor the reverse reaction? kJ (c) What is ÎH when 2.20 mol of S8reacts? kJ

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Write the balanced chemical equation for the following and identify the type of reaction in each case:(a) Potassium bromide(aq) Barium iodide(aq) → Potassium iodide(aq) Barium bromide(s)(b) Zinc carbonate(s) → Zinc oxide(s) Carbon dioxide(g)(c) Hydrogen(g) Chlorine(g) → Hydrogen chloride(g)(d) Magnesium(s) Hydrochloric acid(aq) → Magnesium chloride(aq) Hydrogen(g)

Write the balanced chemical equation for the following and identify the type of reaction in each case:(a) Potassium bromide(aq) Barium iodide(aq) → Potassium iodide(aq) Barium bromide(s)(b) Zinc carbonate(s) → Zinc oxide(s) Carbon dioxide(g)(c) Hydrogen(g) Chlorine(g) → Hydrogen chloride(g)(d) Magnesium(s) Hydrochloric acid(aq) → Magnesium chloride(aq) Hydrogen(g)

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The following pictures represent the initial and equilibrium states for the exothermic decomposition of gaseous A molecules (red) to give gaseous B molecules (blue): (a) Write a balanced chemical equation for the reaction. (b) Will the number of A molecules in the equilibrium mixture increase, decrease, or remain the same after each of the following changes? Explain. (1) Increasing the temperature (2) Decreasing the volume (3) Increasing the pressure by adding an inert gas (4) Adding a catalyst

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