The standard enthalpy change for the following reaction is - 52.3 kJ at 298 K. C2H4(g) — 2 C(s.graphite) + 2 H2(g) AH° = -52.3 kJ What is the standard enthalpy change for this reaction at 298 K? 2 C(s,graphite) + 2 H2(g) — C2H4(9) LLUCU The standard enthalpy change for the following reaction is -240 kJ at 298 K. Ni(s) + 1/2 O2(g) → Nio(s) AH° = -240 kJ What is the standard enthalpy change for the reaction at...
The value of AG° at 25 °C for the following reaction: C2H4 (g) + H2 (g) → C2H6 (g) is kJ/mol. At 298 K, AH° for this reaction is -137.5 kJ/mol, and ASº is +120.5 J/K. 35800 A. -101.7 B. -173.4 C. -35800 D. 0 E.
The reaction C2H4(g) + N2O(g) --------> CH3CHO(g) +NO(g) is first order in both C2H4 and N2O, with k = 1.46×10-3 L (mol^-1)(s^-1) at 580°C. If 1.00 L of C2H4(g) at a concentration of 3.50×10-3 M is rapidly mixed with the same volume of N2O(g) also at a concentration of 3.50×10-3 M, what is the time (in seconds) required for the C2H4 concentration to decrease to a value of 1.06×10-3 M?
6. Consider the following reaction C2H4(g) +H2(gCaHo (g) K 0.99 What is the concentration for each substance at equilibrium if the initial concentration of ethene, C2H4, is 0.335 M and that of hydrogen is 0.526 M?
- degreasing agent, Tetrachloroethylene, is produced in the reaction C2H4(g) + 4 HCl(g) + 2 O (8) ► C lic AH (kJ/moly 52 26 - 92.31 a) determine AH°for CC1(1) FC (9) +2 O2(g) → CCI.(l) + 4H2O(1) -285.8 AH x = -878.5 kJ a) AHⓇ for CC (I) = -52.28 kJ b) How much heat (kJ) would be evol amounts of HCl and O:)? uch heat (kJ) would be evolved when 7.5 kg of C2H4(g) reacts completely (with stoichiometric...
Given the following equation, C2H5I (g) ⇒ C2H4 (g) + HI (g) k= 4.0 * 10^-3 s^ -1 at 700K a. Write the rate law. b. what is the rate of reaction when {C2H5I}=3.3x10^-4mol/L? c. if the concentration is doubled, what is the effect on the reaction? d. What is the half life? 2. Given the following equation 2C2H2=C4H4 K=0.178 L/mol at 770K a. write the rate law b. what is the rate of reaction when C2H2=0.195M c. what is...
4. [20pt] The equilibrium constant of the reaction 2 C3H6 = C2H4 + C4H8 has been measured over a range of temperatures. Between 300 K and 600 K, it fits to the expression (T in Kelvin), 1088 1.51 · 105 In K = -1.04 - T + 12 Use this information and the Gibbs-Helmholtz equation and calculate the standard reaction enthalpy and standard reaction entropy at 400 K. /T) / (Here, the Gibbs-Helmholtz equation can be derived by taking (/...
C2H4(g) + H2O(g) to CH3CH2OH(g) H° = -45.6 kJ and S° = -125.7 J/K The equilibrium constant for this reaction at 267.0 K is . Assume that H° and S° are independent of temperature.
Given the following table of thermodynamic data, substance S° C2H2 (g) 200.8 J/mol −K C2H4 (g) 219.4 C2H6 (g) 229.5 H2 (g) 130.58 determine the D S° (in J/mol −K) for the reaction: C2H2 (g) + H2 (g) ® C2H4 (g) −111.98 −101.88 −232.46 +111.98 +101.88
For the reaction X(g) + 3Y(g) = 32(g) K = 3.15x10-2 at a temperature of 255 °C Calculate the value of K.. Express your answer numerically. View Available Hint(s) IVO AL O ?