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A chemist measures the enthalpy change AH during the following reaction: 8 SO2(9) + 16 H,S(g)→ 3 Sg(s) + 16 H,0(1) ДН--1863. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction ΔΗ x10 3 280, (2) + 4H,8 (g) → s,6) + 4H,0(1) O kJ 3S,(s) + 16H,0(1) –→ 880,(g) + 16H,S(g) | kJ 6S, (s) + 32H,0(1) 1680, (g) + 32H,S(g) O kJ A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The 1 atm pressure cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. (See sketch at right.) piston cylinder From previous experiments, this chemical reaction is known to absorb 170. kJ of energy. water bath gases The position of the piston is monitored, and it is determined from this data that the system does 220. kJ of work on the piston during the reaction. exothermic Is the reaction exothermic or endothermic? x10 endothermic Does the temperature of the water bath go up or down? dn down neither in Does the piston move in or out? out neither in Does heat flow into or out of the gas mixture? out neither How much heat flows? Be sure your answer has the correct number of significant digits. | kJ

A chemist measures the enthalpy change AH during the following reaction: 8 SO2(9) + 16 H,S(g)→ 3 Sg(s) + 16 H,0(1) ДН--1863. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction ΔΗ x10 3 280, (2) + 4H,8 (g) → s,6) + 4H,0(1) O kJ 3S,(s) + 16H,0(1) –→ 880,(g) + 16H,S(g) | kJ 6S, (s) + 32H,0(1) 1680, (g) + 32H,S(g) O kJ A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The 1 atm pressure cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. (See sketch at right.) piston cylinder From previous experiments, this chemical reaction is known to absorb 170. kJ of energy. water bath gases The position of the piston is monitored, and it is determined from this data that the system does 220. kJ of work on the piston during the reaction. exothermic Is the reaction exothermic or endothermic? x10 endothermic Does the temperature of the water bath go up or down? dn down neither in Does the piston move in or out? out neither in Does heat flow into or out of the gas mixture? out neither How much heat flows? Be sure your answer has the correct number of significant digits. | kJ

Chemistry: Matter and Change
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter15: Energy And Chemical Change
Section: Chapter Questions
Problem 92A
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A chemist measures the enthalpy change AH during the following reaction: 8 SO2(9) + 16 H,S(g)→ 3 Sg(s) + 16 H,0(1) ДН--1863. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction ΔΗ x10 3 280, (2) + 4H,8 (g) → s,6) + 4H,0(1) O kJ 3S,(s) + 16H,0(1) –→ 880,(g) + 16H,S(g) | kJ 6S, (s) + 32H,0(1) 1680, (g) + 32H,S(g) O kJ
Transcribed Image Text:A chemist measures the enthalpy change AH during the following reaction: 8 SO2(9) + 16 H,S(g)→ 3 Sg(s) + 16 H,0(1) ДН--1863. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction ΔΗ x10 3 280, (2) + 4H,8 (g) → s,6) + 4H,0(1) O kJ 3S,(s) + 16H,0(1) –→ 880,(g) + 16H,S(g) | kJ 6S, (s) + 32H,0(1) 1680, (g) + 32H,S(g) O kJ
A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The 1 atm pressure cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. (See sketch at right.) piston cylinder From previous experiments, this chemical reaction is known to absorb 170. kJ of energy. water bath gases The position of the piston is monitored, and it is determined from this data that the system does 220. kJ of work on the piston during the reaction. exothermic Is the reaction exothermic or endothermic? x10 endothermic Does the temperature of the water bath go up or down? dn down neither in Does the piston move in or out? out neither in Does heat flow into or out of the gas mixture? out neither How much heat flows? Be sure your answer has the correct number of significant digits. | kJ
Transcribed Image Text:A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The 1 atm pressure cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. (See sketch at right.) piston cylinder From previous experiments, this chemical reaction is known to absorb 170. kJ of energy. water bath gases The position of the piston is monitored, and it is determined from this data that the system does 220. kJ of work on the piston during the reaction. exothermic Is the reaction exothermic or endothermic? x10 endothermic Does the temperature of the water bath go up or down? dn down neither in Does the piston move in or out? out neither in Does heat flow into or out of the gas mixture? out neither How much heat flows? Be sure your answer has the correct number of significant digits. | kJ
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