1. A second-order reaction of the type A + A → P was carried out...
1. A second-order reaction of the type
A + A → P
was carried out in a solution with the initial concentration
[A]0 = 0.58 mol L-1. After 20.5 s the
concentration of A had fallen to [A]t = 0.12 mol
L-1. What is the rate constant k for this
reaction in units of liter per mol per second (L mol-1
s-1) ?
2. A compound with vaporization enthalpy of ΔHvap = 68.0 kJ for every 2 molesof liquid has a vapor pressure of P1 = 84 Pa at T1 = 204 K. What is the vapor pressure P2 of this liquid at a temperature of T2 = 355 K in units of pascal (Pa)?
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Homework Answers
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3. A second order reaction of the type A + B → P was carried out...
3. A second order reaction of the type A + B → P was carried out in a solution with initial concentrations of 0.075 and 0.050 moVL for A and B, respectively. After one hour, the concentration of B decreased to 0.020 mol/L. The reaction rate is expressed as v = k[A][B] 3.1 Calculate the rate constant of this reaction. 3.2 What is the half-life time of the reactants?
The vapor pressure of ethanol is 1.00 x 102 mmHg at 34.90oC. What is its vapor...
The vapor pressure of ethanol is 1.00 x 102 mmHg at 34.90oC. What is its vapor pressure at 51.73 oC? (ΔHvap for ethanol is 39.3 Kj/mol.) Given the vapor pressure at one temperature, P1, we can calculate the vapor pressure at a second temperature, P2. In (P1/P2) = ΔHvap/R (1/T2 - 1/T1) Where, ΔHvap for ethanol must have the units of J/mol. R = 8.314 J/K.mol .. The temperatures must be in Kelvins. Solve for P2, What is the vapor...
The vapor pressure, P,P, of a certain liquid was measured at two temperatures, T.T. The data...
The vapor pressure, P,P, of a certain liquid was measured at two temperatures, T.T. The data is shown in the table. T (K) P (kPa) 325 3.46 525 8.42 Keep the pressure units in kilopascals. If you were going to graphically determine the enthalpy of vaporizaton, ΔHvap,ΔHvap, for this liquid, what points would you plot? To avoid rounding errors, use three significant figures in the xx‑values and four significant figures in the yy‑values. point 1: x= y= point 2: x=...
The vapor pressure, P,P, of a certain liquid was measured at two temperatures, T.T. The data...
The vapor pressure, P,P, of a certain liquid was measured at two temperatures, T.T. The data is shown in the table. T (K) P (kPa) 275 3.12 525 7.93 Keep the pressure units in kilopascals. If you were going to graphically determine the enthalpy of vaporizaton, ΔHvap,ΔHvap, for this liquid, what points would you plot? To avoid rounding errors, use three significant figures in the x‑values and four significant figures in the y‑values. point 1: x= point 1: y= point...
The second order gas phase irreversible reaction: 2.4-B is carried out in an isothermal batch reactor...
The second order gas phase irreversible reaction: 2.4-B is carried out in an isothermal batch reactor containing 40 kg of catalyst and with an initial volume of 60-liter. The reactor is initially filled with equal molar quantities of A and inert I at 300 K and 2.5 atm. Calculate the time needed for the concentration of product (B) to be 0.02 mole/liter if: a) the reaction takes in a constant pressure batch reactor (3 points) b) the reaction takes place...
An acid-catalyzed irreversible liquid-phase reaction A B is carried out adiabatically in a CSTR. The reaction is second...
An acid-catalyzed irreversible liquid-phase reaction A B is carried out adiabatically in a CSTR. The reaction is second order in A. The feed is equimolar A and solvent (S, which contains catalyst), and enters the reactor at a total volumetric flow rate of 10 dm3/min at a concentration of A of 4 mol/L. The feed enters at 300 K. The product and reactant heat capacities are 15 cal/(mol°C), the solvent is 18 cal/(mol°C). The reaction rate constant at 300 K...
The vapor pressure, ?,P, of a certain liquid was measured at two temperatures, ?.T. The data...
The vapor pressure, ?,P, of a certain liquid was measured at two temperatures, ?.T. The data is shown in the table. T (K) P (kPa) 225 3.64 525 5.91 Keep the pressure units in kilopascals. If you were going to graphically determine the enthalpy of vaporizaton, Δ?vap,ΔHvap, for this liquid, what points would you plot? To avoid rounding errors, use three significant figures in the ?x‑values and four significant figures in the ?y‑values. point 1: ?=x= point 1: ?=y= point...
15. According to the Clausius-Clapeyron equation ln va R T T P"арф) refers to the vapor...
15. According to the Clausius-Clapeyron equation ln va R T T P"арф) refers to the vapor pressure at temperature 1, R-2 cal/mol-K, and Ah is the heat of changc associated with the process of transitioning to the vapor (cither sublimation or vaporization depending on whether the transition is from solid to vapor or liquid to vapor) i.e., дН-H vapor-H , where X is either solid or liquid and H denotes the corresponding molar enthalpy. Use the Clausius-Clapeyron equation to solve...
The irreversible, endothermic, elementary, liquid-phase reaction: 2A ---> B, is carried out adiabatically in a 100 li...
The irreversible, endothermic, elementary, liquid-phase reaction: 2A ---> B, is carried out adiabatically in a 100 liter PRF. Species A and inert liquid are fed to the reactor with concentrations CAo = 1.5 mol/l and CIo = 1.5 mol/l, while FAo=20 mol/min. The entering temperature is 400 K. Calculate the conversion and temperature at the exit of the reactor, given the additional information below: k = 0.0003 l/(mol*min) at 300 K E= 12000 cal/(mol* K) CpA = 10 cal/(mol*K), CpB...
Reaction is A-->B is carried out adiabatically in a CSTR. The reaction is second order in...
Reaction is A-->B
is carried out adiabatically in a CSTR. The reaction is second order in A. The feed, which is equal molar in water (which contains the catalyst) and A, enters the reactor at a temperature of 52 C and a total volumetric flow rate of 10 dm3/min. The concentration of A entering the reactor is 4 molar. a) What is the reactor volume to achieve 80% conversion b) What conversion can be achieved in a 1000 dm3 CSTR?...
3. A second order reaction of the type A + B → P was carried out in a solution with initial concentrations of 0.075 and 0.050 moVL for A and B, respectively. After one hour, the concentration of B decreased to 0.020 mol/L. The reaction rate is expressed as v = k[A][B] 3.1 Calculate the rate constant of this reaction. 3.2 What is the half-life time of the reactants?
The second order gas phase irreversible reaction: 2.4-B is carried out in an isothermal batch reactor containing 40 kg of catalyst and with an initial volume of 60-liter. The reactor is initially filled with equal molar quantities of A and inert I at 300 K and 2.5 atm. Calculate the time needed for the concentration of product (B) to be 0.02 mole/liter if: a) the reaction takes in a constant pressure batch reactor (3 points) b) the reaction takes place...
An acid-catalyzed irreversible liquid-phase reaction A B is carried out adiabatically in a CSTR. The reaction is second order in A. The feed is equimolar A and solvent (S, which contains catalyst), and enters the reactor at a total volumetric flow rate of 10 dm3/min at a concentration of A of 4 mol/L. The feed enters at 300 K. The product and reactant heat capacities are 15 cal/(mol°C), the solvent is 18 cal/(mol°C). The reaction rate constant at 300 K...
15. According to the Clausius-Clapeyron equation ln va R T T P"арф) refers to the vapor pressure at temperature 1, R-2 cal/mol-K, and Ah is the heat of changc associated with the process of transitioning to the vapor (cither sublimation or vaporization depending on whether the transition is from solid to vapor or liquid to vapor) i.e., дН-H vapor-H , where X is either solid or liquid and H denotes the corresponding molar enthalpy. Use the Clausius-Clapeyron equation to solve...
Reaction is A-->B
is carried out adiabatically in a CSTR. The reaction is second order in A. The feed, which is equal molar in water (which contains the catalyst) and A, enters the reactor at a temperature of 52 C and a total volumetric flow rate of 10 dm3/min. The concentration of A entering the reactor is 4 molar. a) What is the reactor volume to achieve 80% conversion b) What conversion can be achieved in a 1000 dm3 CSTR?...
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