The equilibrium constant, K, for the following reaction is 1.80×10⁻² at 698K. An equilibrium mixture of the three gases in a 1.00L flask at 698K contains 0.314M HI. a) [H₂]=[I2]=0.157M b) [H₂]=[I2]=0.314M c) [H₂]=[I2]=0.628M d) [H₂]=[I2]=0.471M