Show that hydrogen peroxide (H2O2) is a liquid at 25°C by using the data below. ΔHf°...
Show that hydrogen peroxide (H2O2) is a liquid at 25°C by using the data below.
ΔHf° (kJ mol-1) data: H2O2(l) = –187.8; H2O2(g) = –136.3
So (J mol-1 K-1) data: H2O2(l) = 110; H2O2(g) = 233
Homework Answers
H2O2 (l) -----------> H2O2 (g)
ΔH°rxn = ΔHf° products - ΔHf° reactants
= - 136.3 - (- 187.8)
= 51.5 kJ
ΔSorxn = 233 - 110
= 123 J/K
ΔGo = ΔH - T ΔS
0 = ΔH - T ΔS
T = ΔH / ΔS = 51500 / 123
T = 418.7 K
boiling point = 145 oC
the estimated boiling point is more than room temperature. so
this is liquid .
Add Answer to:
Show that hydrogen peroxide (H2O2) is a
liquid at 25°C by using the data below.
ΔHf°...
Hydrogen peroxide, H2O2, is a colorless liquid whose solutions are used as a bleach and an...
Hydrogen peroxide, H2O2, is a colorless liquid whose solutions are used as a bleach and an antiseptic. H2O2 can be prepared in a process whose overall change is H, O2 (1) H2(g) +O2(g) Calculate the enthalpy change using the following data: 2H2O2()2H2 O (l) + O2(g); AH = -196.0 kJ H2(g) +O2(g)H2O(); AH= -285.8 kJ ΔΗ- kJ 10 item attempts remaining Try Another Version Submit Answer
Please help me solve this problem. 8.) Given the following table of thermodynamic data, Substance AHf...
Please help me solve this problem.
8.) Given the following table of thermodynamic data, Substance AHf (kJ/mol) | Sº (J/mol · K) H2O2 (g) 232.6 H2O2 (1) -187.8 110 -136.3 Find the value of K for the vaporization of H202 (1).
72. Hydrogen peroxide is a very common oxidizing agent. It has been used as an oxidizer...
72. Hydrogen peroxide is a very common oxidizing agent. It has been used as an oxidizer for rocket engines, it is a readily available antiseptic for home use and we have used it several times in the general chemistry lab. Below is some thermodynamic data for hydrogen peroxide xide at 25 C H (kJ/mol AG (k.J/mol Chemical Thermodvnamics of hydrogen 188 266 H20:1) H2(g) 02(g) H:0:(1) 20H(g H2O2(g) → 20H(g) H202(g) HO:(g) +H(g) H2O2(l) H2O(l)+%O2(g) 120 188 174 332 365...
Liquid hydrogen peroxide is an oxidizing agent in many rocket fuel mixtures because it releases oxygen...
Liquid hydrogen peroxide is an oxidizing agent in many rocket fuel mixtures because it releases oxygen gas on decomposition as shown below. 2 H202 (1) ► 2 H20,() + O2 (g) AHrxn = -196 kJ How much heat istreleased when 25.0 grams of H202 decomposes? Molar Mass(H2O2) = 34.01 g/mol Ca.-133 kJ b.-533 k] c-72.0 kj 0-288 kJ e-144 kJ
Hydrogen peroxide (H2O2) decomposes to produce water and oxygen according to the following reaction: 2 H2O2...
Hydrogen peroxide (H2O2) decomposes to produce water and oxygen according to the following reaction: 2 H2O2 (l) -----------> 2 H2O (l) + O2 (g) Which relationship regarding the quantities of reactants and products associated with this reaction is NOT correct? Group of answer choices 2 molecules of H2O2 -----------------> 2 molecules of H2O + 1 molecule of O2 2 mol of H2O2 ----------------->2 mol of H2O + 1 mol of O2 68.0 g of H2O2 -----------------> 36.0 g of H2O...
How is A the answer? 21.The temperature at which the following process reaches equilibrium at 1.0...
How is A the answer?
21.The temperature at which the following process reaches equilibrium at 1.0 atm is the normal boiling point of hydrogen peroxide. H2O2(1) H2O2(g) Use the following thermodynamic information at 298 K to determine this temperature. Substance AH°F (kJ mol-)) AG°f (kJ mol Sº (J K-mol) H2O2(1) -187.7 -120.4 109.6 H2O2(g) -136.3 -105.6 232.7 B. 691 K C. 469 K D. 144 K A. 418 K E. 393 K
Exam Hydrogen peroxide, H202, is a colorless liquid whose solutions are used as bleach and an...
Exam Hydrogen peroxide, H202, is a colorless liquid whose solutions are used as bleach and an antiseptic. H2O2 can be prepared in a process whose overall change is H2(g) + O2(g) -H02(1 Calculate the enthalpy change using the following data: H2O2(1) - H20(1) +502 (8); AH = -98.0 kJ (1) 2H2(g) + O2(g) → 2H20(1): AH = -571.6 kJ (2) 5. What is the wavelength, in nanometer, of light emitted when the electron in a hydrogen atom undergoes a transition...
1) Hydrogen peroxide, H2O2(aq), decomposes to H2O(l) and O2(g) in a reaction that is first order...
1) Hydrogen peroxide, H2O2(aq), decomposes to H2O(l) and O2(g) in a reaction that is first order in H2O2 and has a rate constant k = 1.06×10−3 min−1 at a given temperature. How long will it take for 15% of a sample of H2O2 to decompose? 2)The decomposition of nitrogen dioxide, NO2, into nitrogen monoxide and oxygen at a high temperature is second-order in NO2. The rate constant for this reaction is 3.40 L/mol×min. Determine the time needed for the concentration...
The redox reaction between hydrogen peroxide, H2O2, and permanganate ions, MnO4-, in acid solution are as...
The redox reaction between hydrogen peroxide, H2O2, and permanganate ions, MnO4-, in acid solution are as follows: 5H2O2(aq) + 2MnO4-(aq) + 6H+(aq) → 5O2(g) + 2Mn2+(aq) + 8H2O (l) 5 mol of MnO4-was required to reach the equilibrium. How many moles of H2O2were required to reach the equilibrium? a) 2 mol b. 10 mol c) 12.5 mol d) 25 mol
Be sure to answer all parts. Liquid hydrogen peroxide, an oxidizing agent in many rocket fuel...
Be sure to answer all parts. Liquid hydrogen peroxide, an oxidizing agent in many rocket fuel mixtures, releases oxygen gas on decomposition: 2 H2O2(1) + 2 H2O(1) + O2(g) AHpxn=-196.1 kJ Calculate the heat for the decomposition of 384 kg of H2O2. x 10 kJ (Enter your answer in scientific notation.)
Hydrogen peroxide, H2O2, is a colorless liquid whose solutions are used as a bleach and an antiseptic. H2O2 can be prepared in a process whose overall change is H, O2 (1) H2(g) +O2(g) Calculate the enthalpy change using the following data: 2H2O2()2H2 O (l) + O2(g); AH = -196.0 kJ H2(g) +O2(g)H2O(); AH= -285.8 kJ ΔΗ- kJ 10 item attempts remaining Try Another Version Submit Answer
Please help me solve this problem.
8.) Given the following table of thermodynamic data, Substance AHf (kJ/mol) | Sº (J/mol · K) H2O2 (g) 232.6 H2O2 (1) -187.8 110 -136.3 Find the value of K for the vaporization of H202 (1).
72. Hydrogen peroxide is a very common oxidizing agent. It has been used as an oxidizer for rocket engines, it is a readily available antiseptic for home use and we have used it several times in the general chemistry lab. Below is some thermodynamic data for hydrogen peroxide xide at 25 C H (kJ/mol AG (k.J/mol Chemical Thermodvnamics of hydrogen 188 266 H20:1) H2(g) 02(g) H:0:(1) 20H(g H2O2(g) → 20H(g) H202(g) HO:(g) +H(g) H2O2(l) H2O(l)+%O2(g) 120 188 174 332 365...
Liquid hydrogen peroxide is an oxidizing agent in many rocket fuel mixtures because it releases oxygen gas on decomposition as shown below. 2 H202 (1) ► 2 H20,() + O2 (g) AHrxn = -196 kJ How much heat istreleased when 25.0 grams of H202 decomposes? Molar Mass(H2O2) = 34.01 g/mol Ca.-133 kJ b.-533 k] c-72.0 kj 0-288 kJ e-144 kJ
How is A the answer?
21.The temperature at which the following process reaches equilibrium at 1.0 atm is the normal boiling point of hydrogen peroxide. H2O2(1) H2O2(g) Use the following thermodynamic information at 298 K to determine this temperature. Substance AH°F (kJ mol-)) AG°f (kJ mol Sº (J K-mol) H2O2(1) -187.7 -120.4 109.6 H2O2(g) -136.3 -105.6 232.7 B. 691 K C. 469 K D. 144 K A. 418 K E. 393 K
Exam Hydrogen peroxide, H202, is a colorless liquid whose solutions are used as bleach and an antiseptic. H2O2 can be prepared in a process whose overall change is H2(g) + O2(g) -H02(1 Calculate the enthalpy change using the following data: H2O2(1) - H20(1) +502 (8); AH = -98.0 kJ (1) 2H2(g) + O2(g) → 2H20(1): AH = -571.6 kJ (2) 5. What is the wavelength, in nanometer, of light emitted when the electron in a hydrogen atom undergoes a transition...
Be sure to answer all parts. Liquid hydrogen peroxide, an oxidizing agent in many rocket fuel mixtures, releases oxygen gas on decomposition: 2 H2O2(1) + 2 H2O(1) + O2(g) AHpxn=-196.1 kJ Calculate the heat for the decomposition of 384 kg of H2O2. x 10 kJ (Enter your answer in scientific notation.)
Most questions answered within 3 hours.
-
Which for loop is implemented correctly in Java?
Group of answer choices
for (i = 0...
asked 13 minutes ago -
Required information
[The following information applies to the questions
displayed below.]
In 2019, Alliant Corporation acquired...
asked 31 minutes ago -
How much must I invest today if I want to withdraw 1/3 of my
original investment...
asked 2 hours ago -
What is meant by a “term premium”?
What can explain such a premium? Is it a...
asked 4 hours ago -
23. Which molecule has only covalent bonds? A. CO2 B. Al2O3 C.
Mg3N2
24. The octet...
asked 4 hours ago -
the
total pressure for a mixture of N2O4 and NO2 is 2.20 atm. If Kp=
7.10...
asked 4 hours ago -
Delaware Corp. prepared a master budget that included $22,385
for direct materials, $28,600 for direct labor,...
asked 4 hours ago -
For pesticide HCB (hexachlorobenzene), its logarithmic partition
coefficient log Kow is 5.6. What would be the...
asked 4 hours ago -
A chemist requires 0.422 mil Na2CO3 for a reaction. How many
grams does this correspond to?
asked 4 hours ago -
If the vapor pressure of carvone is approximately 9.4 torr at 99
°C, approximately how much...
asked 5 hours ago -
A juice bottling company is carrying out a test at 10%
significance that the mean population...
asked 5 hours ago -
What is the reflectivity (in percent) needed to keep water at a
temperature near its freezing...
asked 5 hours ago