Classify each of the following reactions as spontaneous only at low temperatures (i), only at high temperatures (ii), or at all temperatures (iii). a) 2 H2S(g) + 3 O2(g) → 2 H2O(g) + 2 SO2(g); ΔH°= –1036.9 kJ b) SO2(g) + H2O2(ℓ) → H2SO4(ℓ); ΔH°= –230.5 kJ c) S(g) + O2(g) → SO2(g); ΔH°= –574.0 kJ d) 2 Mg(s) + O2(g) → 2 MgO(s); ΔH°= –601 kJ e) 2 CH3OH(ℓ) + 3 O2(g) → 2 CO2(g) + 4 H2O(ℓ); ΔH°= –1452 kJ f) N2(g) + O2(g) → 2 NO(g); ΔH°= 90.3
Classify each of the following reactions as spontaneous only at low temperatures (i), only at high temperatures (ii), or at all temperatures (iii). a) 2 H2S(g) + 3 O2(g) → 2 H2O(g) + 2 SO2(g); ΔH°= –1036.9 kJ b) SO2(g) + H2O2(ℓ) → H2SO4(ℓ); ΔH°= –230.5 kJ c) S(g) + O2(g) → SO2(g); ΔH°= –574.0 kJ d) 2 Mg(s) + O2(g) → 2 MgO(s); ΔH°= –601 kJ e) 2 CH3OH(ℓ) + 3 O2(g) → 2 CO2(g) + 4 H2O(ℓ); ΔH°= –1452 kJ f) N2(g) + O2(g) → 2 NO(g); ΔH°= 90.3
Chemistry by OpenStax (2015-05-04)
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ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter16: Thermodynamics
Section: Chapter Questions
Problem 3E: Indicate whether the following processes are spontaneous or nonspontaneous. (a) Liquid water...
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Classify each of the following reactions as spontaneous only at low temperatures (i), only at high temperatures (ii), or at all temperatures (iii).
a) 2 H2S(g) + 3 O2(g) → 2 H2O(g) + 2 SO2(g); ΔH°= –1036.9 kJ
b) SO2(g) + H2O2(ℓ) → H2SO4(ℓ); ΔH°= –230.5 kJ
c) S(g) + O2(g) → SO2(g); ΔH°= –574.0 kJ
d) 2 Mg(s) + O2(g) → 2 MgO(s); ΔH°= –601 kJ
e) 2 CH3OH(ℓ) + 3 O2(g) → 2 CO2(g) + 4 H2O(ℓ); ΔH°= –1452 kJ
f) N2(g) + O2(g) → 2 NO(g); ΔH°= 90.3 kJ
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