Find the temperature at which Kp = 42.0 for the reaction H2(g) + I2(g) 2HI(g) .[Given: at 25°C, for H2(g) , H°f = 0, S° = 131.0 J/mol·K; for I2(g) , H°f = 62.26 kJ/mol, S° = 260.6 J/mol·K; for HI(g) , H°f = 25.9 kJ/mol, S° = 206.3 J/mol·K; assume that H° and S° are independent of temperature.]
A) 1040 K
B) 168 K
C) 539 K
D) 1400 K
E) 34,200 K
Correct Answer:
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