Calculate the value of K for the formation of NO2 from NO and O2 at 298 K if ∆?° = -35.3 kJ/ mol for the following reaction. (R = 8.314 J/mol. K) NO(g) + 12 O2 (g) ⇌ NO2 (g)

Calculate Kc for each reaction.N2(g)+3H2(g)⇌2NH3(g),Kp=6.2×105  (at 298  K)

Consider the reaction 2NO 2( g) --> N 2O 4( g); Δ H° = –56.8 kJ and Δ S° = –175 J/K. In a container (at 298 K) N 2O 4( g) and NO 2( g) are mixed with initial partial pressures of 2.4 atm and 0.42 atm, respectively. Which of the following statements is correct?   a. Some N2O4(g) will decompose into NO2(g).   b. Some NO2(g) will dimerize to form N2O4(g).   c. The system is at equilibrium at these initial pressures.   d. The final total pressure must be known to answer this question.   e. None of these.

Given the following reaction: N2 (g) + 3 H2 (g) ⇌ 2 NH3 (g)        ΔH = -46.0 kJ/mol Which way will the reaction shift if the temperature is increased?