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
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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
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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