Hydrogen bromide dissociates into its gaseous elements, H₂ and Br₂, at elevated temperatures. HBr(g) H₂ (9) Br₂(g) AH, kJ/mol S, J/(mol-K) -36.44 0 30.91 198.6 130.6 245.3 a. Calculate the percent dissociation at 373°C and 1.00 atm. (Enter your answer to three significant figures.) Percent dissociation = % b. What would be the percent dissociation at 373°C and 10.0 atm? (Enter your answer to three significant figures.) Percent dissociation: = % c. Use data above and any reasonable approximation to obtain K. (Enter your answer to three significant figures.) K=

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