Homework Answers
Solution 1:
Solubility of gas decreases with increasing temperature.
So, if T (temperature) decreases , the concentration of N2 (gas) will increase.
Solution 2.
MgI2 is solid. Pressure has no effect on solubility of solids in liquid.
So, if P decreases the concentration of MgI2 , will stay the same.
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Consider a saturated solution of each of the given solutes in water at 20°C and 1 atm. Solution 1, N2: If T decre...
For the saturated aqueous solution of O2(g) at 20 C and 1 atm with the solubility...
For the saturated aqueous solution of O2(g) at 20 C and 1 atm
with the solubility increase, decrease or stay no charge when the
indicated change occurs?
For a saturated aqueous solution of O2(3) at 20 °C and 1 atm, will the solubility increase, decrease or stay no change when the indicated change occurs? (1) The solubility of O23) [Select] when pressure increases. (2) The solubility of O2(s) [ Select ] when temperature increases.
3. Barium hydroxide Ba(OH)2 was dissolved in pure water at 5 Cuntil a saturated solution was...
3. Barium hydroxide Ba(OH)2 was dissolved in pure water at 5 Cuntil a saturated solution was obtained. The pH of this solution was found to be 12.25. a) (2 marks) What is the molar solubility of Ba(OH), in pure water at this temperature? Express your answer in mol/L. Show your work. b) (1 mark) What is the Kp of Ba(OH)2 at this temperature? Show your work. c) (0.5 marks) If Ba(OH)2 was added to a solution already containing 0.100 M...
N2. Given saturated air of temperature and liquid water mixing ratio as listed below. What is its...
N2. Given saturated air of temperature and liquid water mixing ratio as listed below. What is its virtual temperature, and how would it compare to the virtual temperature with no liquid water? ri (g/kg) T (°C) 20 10 0 30 b. 2 d.
N2. Given saturated air of temperature and liquid water mixing ratio as listed below. What is its virtual temperature, and how would it compare to the virtual temperature with no liquid water? ri (g/kg) T (°C) 20...
Heat Exchanger V1 = 8.80 L/s acetone n2 mol/s acetone P2 = 1 atm Saturated acetone...
Heat Exchanger V1 = 8.80 L/s acetone n2 mol/s acetone P2 = 1 atm Saturated acetone vapor enters a heat exchanger at a rate of 8.80 L/s at 1 atm, and emerges from the heat exchanger as a saturated liquid at the same pressure. Water at 1 atm enters the heat exchanger at 11.5°C and at a rate of 8.65 mol/s. Assume that the heat exchanger operates adiabatically with respect to its surroundings. Calculate the temperature of exiting water by...
20) Which statement is true concerning the stand A) The standard state for N2() is the...
20) Which statement is true concerning the stand A) The standard state for N2() is the pure gas at 1 atm. B) The standard state for N2() is the pu at a concentration of 1 mol/L. tre concerning the standard states of N2(x) and C12H22011(aq)? te for N2(8) is the pure gas at 1 atm and for C12H22011(aq) is the pure solid 20) — ndard state for N2() is the pure gas at 1 mol/L and for C12H22011(aq) is the...
1/2 N2 (g) +3/2H2 (g) ⇌ NH3 (g) a) Given t=450 C p= 40 atm and...
1/2 N2 (g) +3/2H2 (g) ⇌ NH3 (g) a) Given t=450 C p= 40 atm and Kp= 7x10^-3 atm^-1 what is Kc? b) If the gases are placed in a closed reaction vessel with the partial pressures PNH3= 24 atm, PN2= 12 atm and PH2= 36 atm is the system in equilibrium? c) If the vessel is allowed to expand such that the total pressure is 10 atm will H2 (g) form or be consumed? d) If the temp is...
Saturated, Unsaturated & Supersaturated Solutions Solution, in which the concentration of solute is that determined by...
Saturated, Unsaturated & Supersaturated Solutions Solution, in which the concentration of solute is that determined by its solubility (at given temperature) is called SATURATED solution. One cannot add more solute to such a solution. We also say that a saturated solution is in equilibrium with pure solute: If we add solid Nacl to an already saturated solution of NaCl, that solid remains in equilibrium with dissolved Naci. Solution containing less solute than would be in the saturated solution, is UNSATURATED...
The following information is given for water at 1 atm: T) - 100.00°C Adap (100.00°C)= 2.259...
The following information is given for water at 1 atm: T) - 100.00°C Adap (100.00°C)= 2.259 x 109 J/g AH (0.00°C) - 333.5 J/g T.-0.00°C Specific heat solid - 2.100 J/g °C Specific heat liquid - 4.184 J/g °C A 32.10 g sample of solid water is initially at -23.00°C. If the sample is heated at constant pressure (P = 1 atm). kJ of heat are needed to raise the temperature of the sample to 22.00°C.
dtioh before Problemt vapor at 200 kPa. mixing it with saturated water Cold liquid water T,...
dtioh before Problemt vapor at 200 kPa. mixing it with saturated water Cold liquid water T, 20-C -200 kP Water Unknown quality P, 200 kPa Mixing Chamber Saturated water vapor P 200 kPa What is the enthalpy for the cold water (stream 1)? What is the enthalpy for the saturated vapor (stream 2)? If both the streams enter the mixing chamber at the same mass flow rate of 0.8 kg/s, determine the enthalpy of the exiting stream.
Water entering a wet cooling tower at 35°C at a rate of 100 kg/s is cooled to 22°C in the cooling tower by air that enters the tower at 1 atm, 20°C, and 60% relative humidity and leaves saturated at 3...
Water entering a wet cooling tower at 35°C at a rate of 100 kg/s
is cooled to 22°C in the cooling tower by air that enters the tower
at 1 atm, 20°C, and 60% relative humidity and leaves saturated at
30°C. The makeup water of 22°C is supplied to the outlet to make
the mass flow rate of the cool water the same as that at the inlet,
see Figure Q5.
Q.5Water entering a wet cooling tower at 35°C at...
For the saturated aqueous solution of O2(g) at 20 C and 1 atm
with the solubility increase, decrease or stay no charge when the
indicated change occurs?
For a saturated aqueous solution of O2(3) at 20 °C and 1 atm, will the solubility increase, decrease or stay no change when the indicated change occurs? (1) The solubility of O23) [Select] when pressure increases. (2) The solubility of O2(s) [ Select ] when temperature increases.
3. Barium hydroxide Ba(OH)2 was dissolved in pure water at 5 Cuntil a saturated solution was obtained. The pH of this solution was found to be 12.25. a) (2 marks) What is the molar solubility of Ba(OH), in pure water at this temperature? Express your answer in mol/L. Show your work. b) (1 mark) What is the Kp of Ba(OH)2 at this temperature? Show your work. c) (0.5 marks) If Ba(OH)2 was added to a solution already containing 0.100 M...
N2. Given saturated air of temperature and liquid water mixing ratio as listed below. What is its virtual temperature, and how would it compare to the virtual temperature with no liquid water? ri (g/kg) T (°C) 20 10 0 30 b. 2 d.
N2. Given saturated air of temperature and liquid water mixing ratio as listed below. What is its virtual temperature, and how would it compare to the virtual temperature with no liquid water? ri (g/kg) T (°C) 20...
Heat Exchanger V1 = 8.80 L/s acetone n2 mol/s acetone P2 = 1 atm Saturated acetone vapor enters a heat exchanger at a rate of 8.80 L/s at 1 atm, and emerges from the heat exchanger as a saturated liquid at the same pressure. Water at 1 atm enters the heat exchanger at 11.5°C and at a rate of 8.65 mol/s. Assume that the heat exchanger operates adiabatically with respect to its surroundings. Calculate the temperature of exiting water by...
20) Which statement is true concerning the stand A) The standard state for N2() is the pure gas at 1 atm. B) The standard state for N2() is the pu at a concentration of 1 mol/L. tre concerning the standard states of N2(x) and C12H22011(aq)? te for N2(8) is the pure gas at 1 atm and for C12H22011(aq) is the pure solid 20) — ndard state for N2() is the pure gas at 1 mol/L and for C12H22011(aq) is the...
Saturated, Unsaturated & Supersaturated Solutions Solution, in which the concentration of solute is that determined by its solubility (at given temperature) is called SATURATED solution. One cannot add more solute to such a solution. We also say that a saturated solution is in equilibrium with pure solute: If we add solid Nacl to an already saturated solution of NaCl, that solid remains in equilibrium with dissolved Naci. Solution containing less solute than would be in the saturated solution, is UNSATURATED...
The following information is given for water at 1 atm: T) - 100.00°C Adap (100.00°C)= 2.259 x 109 J/g AH (0.00°C) - 333.5 J/g T.-0.00°C Specific heat solid - 2.100 J/g °C Specific heat liquid - 4.184 J/g °C A 32.10 g sample of solid water is initially at -23.00°C. If the sample is heated at constant pressure (P = 1 atm). kJ of heat are needed to raise the temperature of the sample to 22.00°C.
dtioh before Problemt vapor at 200 kPa. mixing it with saturated water Cold liquid water T, 20-C -200 kP Water Unknown quality P, 200 kPa Mixing Chamber Saturated water vapor P 200 kPa What is the enthalpy for the cold water (stream 1)? What is the enthalpy for the saturated vapor (stream 2)? If both the streams enter the mixing chamber at the same mass flow rate of 0.8 kg/s, determine the enthalpy of the exiting stream.
Water entering a wet cooling tower at 35°C at a rate of 100 kg/s
is cooled to 22°C in the cooling tower by air that enters the tower
at 1 atm, 20°C, and 60% relative humidity and leaves saturated at
30°C. The makeup water of 22°C is supplied to the outlet to make
the mass flow rate of the cool water the same as that at the inlet,
see Figure Q5.
Q.5Water entering a wet cooling tower at 35°C at...
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