Find the temperature at which K
p = 42.0 for the reaction H
2(g) + I
2(g)
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2HI(g). [Given: at 25°C, for H
2(g), ΔH°
f = 0, S° = 131.0 J/mol·K; for I
2(g), ΔH°
f = 62.26 kJ/mol, S° = 260.6 J/mol·K; for HI(g), ΔH°
f = 25.9 kJ/mol, S° = 206.3 J/mol·K; assume that ΔH° and ΔS° are independent of temperature.]
◦ 1040 K
◦ 168 K
◦ 539 K
◦ 1400 K
◦ 34,200 K