Dinitrogen tetroxide was used as part of the fuel for the lunar lander in the Apollo...

Dinitrogen tetroxide was used as part of the fuel for the lunar lander in the Apollo missions. It establishes the equilibrium below.

N2O4 (g) <--> 2 NO2 (g) Kp = 0.133

If an unknown pressure of N2O4 is added to a reaction flask, and 90.0% of the N2O4 still remains once equilibrium has been established, what was the initial pressure that was added to the reaction flask?

Expert Solution

N2O4 (g) <--------------> 2 NO2 (g)

Kp = 0.133

N2O4 (g) <--------------> 2 NO2 (g)

P x

P - x x

P - x = 0.9 P

x = 0.1 P

Kp = P^2NO / PN2O4

0.133 = (0.1P)^2 / 0.9 P

0.133 = 0.01 P^2 / 0.9 P

P = 11.97

initial pressure that was added to the reaction flask = 11.97 atm

queen_honey_blossom answered 2 years ago

Just before it landed on the moon, the Apollo 12 lunar lander had a mass of...

Just before it landed on the moon, the Apollo 12 lunar lander had a mass of 1.4×104 kg. Part A What rocket thrust was necessary to have the lander touch down with zero acceleration? Express your answer with the appropriate units. Fthrust =

Part A: Consider the following decomposition reaction of dinitrogen tetroxide: N₂O₄ ⇄ 2NO₂ After 180 seconds...

Part A: Consider the following decomposition reaction of dinitrogen tetroxide: N₂O₄ ⇄ 2NO₂ After 180 seconds of reaction at 100°C, a dynamic equilibrium is established in which the partial pressures of N₂O₄ and NO₂ were experimentally found to be 0.22 atm and 1.56 atm, respectively. At this point, which statement best describes the reaction rates of the forward and reverse reactions? Explain. a. The forward reaction is occuring at a greater rate than the reverse reaction. b. The reverse reaction...

a. Calculate the equilibrium constant Kp for the dissociation of dinitrogen tetroxide at 25c: N2O4 =...

a. Calculate the equilibrium constant Kp for the dissociation of dinitrogen tetroxide at 25c: N2O4 = 2NO2 Given Delta H of rxn = 57.20 kJ/mol b. What is the value of Kp at 55c? c. Calculate the degree of dissociation (alpha) of N2O4 at 55c with a pressure of 1.000 bar. The quantity of alpha is defined as the fraction of dimer molecules that have dissociated. Delta G of formation for N2O4= 97.787 kJ/mol Delta G of formation for NO2...

A 4600 kg lunar lander is in orbit 40 km above the surface of the moon....

A 4600 kg lunar lander is in orbit 40 km above the surface of the moon. It needs to move out to a 280 km high orbit in order to link up with the mother ship that will take the astronauts home. How much work must the thrusters do?

Nitrogen gas reacts with oxygen gas to form dinitrogen tetroxide. N2 (g) + 2 O2 (g)...

Nitrogen gas reacts with oxygen gas to form dinitrogen tetroxide. N2 (g) + 2 O2 (g) → N2O4 (g) A 1.8 L reaction vessel, initially at 298 K, contains nitrogen gas at a partial pressure of 337 mmHg and oxygen gas at a partial pressure of 445 mmHg . What is the pressure of N2O4 in the reaction vessel after the reaction? Enter your answer numerically, in terms of mmHg. Please show all work

The Saturn V rocket used to launch Apollo 11 to the moon has a mass of...

The Saturn V rocket used to launch Apollo 11 to the moon has a mass of 2.8x106kg. The first stage contains 2.17x106 kg of fuel. Assume that a uniform burn rate (fuel is ejected at constant for 168 seconds until all is gone) produces a constant 3.4x107 N of thrust for 168 seconds. A.Draw a free body force diagram of the rocket while it is moving. B.What is the mass flow rate of the ejected fuel in kg/s? C.What is...

. Methanol, CH3OH, is used as fuel in race cars. This liquid fuel can be synthesized...

. Methanol, CH3OH, is used as fuel in race cars. This liquid fuel can be synthesized using the following process C(s) + 1⁄2O2(g) + 2H2(g) CH3OH(l) Calculate ÆGo using the ÆGof of the reaction. Calculate Kp. What is the relation between the magnitude of ÆGo and Kp?

Hydrogen fuel has been used in fuel cells or internal combustion engines. Determine the heat of...

Hydrogen fuel has been used in fuel cells or internal combustion engines. Determine the heat of combustion, energy capacity, and carbon footprint of the fuel. ΔHf H2O(l) = -285.8 kJ/mol

Methanol is the simplest alcohol and it is used as a fuel in race cars and...

Methanol is the simplest alcohol and it is used as a fuel in race cars and is a potential replacement for gasoline. Methanol can be manufactured by combination of gaseous carbon monoxide and hydrogen – if 68.5 Kg of carbon monoxide are reacted with 8.6 Kg of hydrogen, calculate the theoretical yield of methanol. If 3.57* 104 g of methanol are actually produced, what is the percent yield of methanol?

Why is uranium-235 the only isotope of uranium that can be used as fuel for a...

Why is uranium-235 the only isotope of uranium that can be used as fuel for a nuclear weapon? A uranium 235 particle is struck by a neutron creating a fission event. The uranium splits into the following atoms and particles: A Barium 141 atom, a Krypton 92 atom, and 3 neutrons. Use this information and your knowledge of electrostatics, fundamental forces, and the conservation of energy to explain (conceptually) how this produces energy. After a fission event occurs the Barium...

Question