Relation between Kp and Kc, units

28 questions on Relation between Kp and Kc, units from the Chemical Equilibrium chapter: 6 NEET level, 11 JEE Main, 11 JEE Advanced. Each one opens with its answer and solution.

• For the reaction N2(g) + 3H2(g) <=> 2NH3(g), the correct relation between K_p and K_c is NEET level
• At a given temperature, K_p = K_c for which of the following reactions? NEET level
• The unit of K_p for the reaction 2SO2(g) + O2(g) <=> 2SO3(g), when pressures are in atm, is NEET level
• The unit of K_c for the reaction N2O4(g) <=> 2NO2(g), with concentrations in mol L^-1, is NEET level
• For PCl5(g) <=> PCl3(g) + Cl2(g), K_c = 0.040 mol L^-1 at 500 K. Taking R = 0.0821 L atm mol^-1 K^-1, K_p (in atm) is approximately NEET level
• For 2NO(g) + O2(g) <=> 2NO2(g), K_c = 1.2x10^3 L mol^-1 at 300 K. Taking R = 0.0821 L atm mol^-1 K^-1, K_p in atm^-1 is approximately NEET level
• For N2O4(g) <=> 2NO2(g) at 298 K, K_c = 5.8x10^-3 mol L^-1. Using R = 0.0821 L atm mol^-1 K^-1, calculate K_p in atm, correct to two decimal places. JEE Main level
• For 2SO2(g) + O2(g) <=> 2SO3(g), K_p = 0.040 atm^-1 at 800 K. Using R = 0.0821 L atm mol^-1 K^-1, the value of K_c in L mol^-1 is JEE Main level
• For 2NH3(g) <=> N2(g) + 3H2(g) at 700 K, K_c = 2.3x10^-3 mol^2 L^-2. Take R = 0.0831 L bar mol^-1 K^-1 and calculate K_p in bar^2, correct to one decimal place. JEE Main level
• For CO(g) + 2H2(g) <=> CH3OH(g), K_c = 2.5x10^2 L^2 mol^-2 at a certain temperature. Expressed in m^6 mol^-2 (use 1 L = 10^-3 m^3), K_c is JEE Main level
• At 300 K (take R = 0.0821 L atm mol^-1 K^-1, pressures in atm and concentrations in mol L^-1), for which of the following reactions is the numerical value of K_... JEE Main level
• In the equilibrium N2O4(g) <=> 2NO2(g) at 400 K, the partial pressures are p_NO2 = 0.50 atm and p_N2O4 = 0.40 atm. Using R = 0.0821 L atm mol^-1 K^-1, calculate... JEE Main level
• In the equilibrium mixture of N2(g) + 3H2(g) <=> 2NH3(g) at a total pressure of 10 atm, the mole fractions are 0.20 (N2), 0.50 (H2) and 0.30 (NH3). K_p in atm^-... JEE Main level
• 0.40 mol of PCl5 is heated in a 2.0 L closed vessel at 500 K and it dissociates to the extent of 35% according to PCl5(g) <=> PCl3(g) + Cl2(g). Using R = 0.0821... JEE Main level
• For 2NO(g) + O2(g) <=> 2NO2(g) at 500 K (use R = 0.0821 L atm mol^-1 K^-1), which statements are correct? JEE Main level
• For N2(g) + 3H2(g) <=> 2NH3(g), K_c = 0.50 L^2 mol^-2 at 700 K. For 1/2 N2(g) + 3/2 H2(g) <=> NH3(g) at the same temperature, K_p in atm^-1 is (use R = 0.0821 L... JEE Main level
• For CH4(g) + H2O(g) <=> CO(g) + 3H2(g), K_p = 0.080 atm^2 at a certain temperature. Using 1 atm = 101.3 kPa, express K_p in kPa^2 (nearest integer). JEE Main level
• At 500 K and 1.00 atm, the equilibrium mixture from PCl5(g) <=> PCl3(g) + Cl2(g) has a density of 3.63 g/L. Use R = 0.0821 L atm mol^-1 K^-1 and atomic masses P... JEE Advanced level
• A mixture of N2 and H2 in the ratio 1:3 by moles reaches equilibrium N2(g) + 3H2(g) <=> 2NH3(g) at 700 K and a total pressure of 50 atm, where the mole fraction... JEE Advanced level
• For A(g) <=> 2B(g), K_c = 0.0250 mol dm^-3 at 600 K. Using R = 8.314 J mol^-1 K^-1, 1 dm^3 = 10^-3 m^3 and 1 bar = 10^5 Pa, K_p in bar is JEE Advanced level
• For CO(g) + 2H2(g) <=> CH3OH(g) at 500 K, K_p = 5.0x10^-4 atm^-2. Use R = 0.0821 L atm mol^-1 K^-1 and 1 atm = 1.013 bar. Which statements are correct? JEE Advanced level
• A 1.0 L vessel at 300 K contains 0.368 g of N2O4(g) and 0.368 g of NO2(g) (molar masses 92 and 46 g/mol). For N2O4(g) <=> 2NO2(g), K_p = 0.15 atm at 300 K. Take... JEE Advanced level
• At 500 K, K_c = 0.60 L^2 mol^-2 for N2(g) + 3H2(g) <=> 2NH3(g). For the reaction NH3(g) <=> 1/2 N2(g) + 3/2 H2(g) at the same temperature, calculate K_p in atm ... JEE Advanced level
• Pure A(g) at 2.0 atm is introduced into a rigid vessel at constant temperature and dissociates by A(g) <=> B(g) + C(g). At equilibrium the total pressure is 2.5... JEE Advanced level
• For the gas-phase reaction CH4(g) + H2O(g) <=> CO(g) + 3H2(g), the ratio K_p/K_c = 3600 when pressures are in atm and concentrations in mol L^-1. Taking R = 0.0... JEE Advanced level
• 1.0 mol of CO and 2.0 mol of H2 are heated in a 2.0 L rigid vessel at 500 K. At equilibrium of CO(g) + 2H2(g) <=> CH3OH(g), 0.30 mol of CH3OH is present. Using ... JEE Advanced level
• For 2NO(g) + O2(g) <=> 2NO2(g), K_c = 2.0x10^3 L mol^-1 at 500 K. Using R = 0.0821 L atm mol^-1 K^-1 and 1 atm = 101.3 kPa, K_p in kPa^-1 is JEE Advanced level
• For N2O4(g) <=> 2NO2(g) at 298 K, K_c = 5.8x10^-3 mol L^-1 and K_p = 0.142 atm (use R = 0.0821 L atm mol^-1 K^-1). Let K_c' and K_p' refer to 1/2 N2O4(g) <=> NO... JEE Advanced level