I've been stuck on the following question for hours now. I'd really appreciate some help:

A rigid vessel containing only $\ce{NO2(g)}$ is heated to $\pu{337^{ \circ}C}$ and allowed to come to equilibrium according to the following reaction: $$\ce{2NO2 <=> 2NO + O2}$$

The density of the resulting mixture is measured to be $\pu{0.52g/L}$ at a total pressure of $\pu{ 0.75 atm}$. What is the value of Kp?

The answer key says it should be $\pu{0.65 atm}$, but I can't get that number for the life of me. I first tried to find mols using the given density and molar masses, and then finding the partial pressure of each component using the mol fractions, but it doesn't work out.

Question:

A rigid vessel containing only $\ce{NO2(g)}$ is heated to $\pu{337^{ \circ}C}$ and allowed to come to equilibrium according to the following reaction: $$\ce{2NO2 <=> 2NO + O2}$$

The density of the resulting mixture is measured to be $\pu{0.52 g/L}$ at a total pressure of $\pu{ 0.75 atm}$. What is the value of $K_\mathrm p$?

The answer key says it should be $\pu{0.65 atm}$, but I can't get that number. I first tried to find mols using the given density and molar masses, and then finding the partial pressure of each component using the mol fractions, but it doesn't work out.

I've been stuck on the following question for hours now. I'd really appreciate some help:

A rigid vessel containing only $\ce{NO2(g)}$ is heated to 337 °C and allowed to come to equilibrium according to the following reaction: $$\ce{2NO2 <=> 2NO + O2}$$

The density of the resulting mixture is measured to be 0.52g/L at a total pressure of 0.75 atm. What is the value of Kp?

The answer key says it should be 0.65atm, but I can't get that number for the life of me. I first tried to find mols using the given density and molar masses, and then finding the partial pressure of each component using the mol fractions, but it doesn't work out. Could anyone please help? Thank you!

I've been stuck on the following question for hours now. I'd really appreciate some help:

A rigid vessel containing only $\ce{NO2(g)}$ is heated to $\pu{337^{ \circ}C}$ and allowed to come to equilibrium according to the following reaction: $$\ce{2NO2 <=> 2NO + O2}$$

The density of the resulting mixture is measured to be $\pu{0.52g/L}$ at a total pressure of $\pu{ 0.75 atm}$. What is the value of Kp?

The answer key says it should be $\pu{0.65 atm}$, but I can't get that number for the life of me. I first tried to find mols using the given density and molar masses, and then finding the partial pressure of each component using the mol fractions, but it doesn't work out.

I've been stuck on the following question for hours now. I'd really appreciate some help:

"A rigid vessel containing only $\ce{NO2(g)}$ is heated to 337 degrees Celsius and allowed to come to equilibrium according to the following reaction:

$\ce{2NO2 <-> 2NO + O2}$

The density of the resulting mixture is measured to be $0.52\frac{g}{L}$ at a total pressure of 0.75 atm. What is the value of Kp?"

The answer key says it should be 0.65 atm, but I can't get that number for the life of me. I first tried to find mols using the given density and molar masses, and then finding the partial pressure of each component using the mol fractions, but it doesn't work out.

• Could anyone please help?

Thank you!!!

I've been stuck on the following question for hours now. I'd really appreciate some help:

A rigid vessel containing only $\ce{NO2(g)}$ is heated to 337 °C and allowed to come to equilibrium according to the following reaction: $$\ce{2NO2 <=> 2NO + O2}$$

The density of the resulting mixture is measured to be 0.52g/L at a total pressure of 0.75 atm. What is the value of Kp?

The answer key says it should be 0.65atm, but I can't get that number for the life of me. I first tried to find mols using the given density and molar masses, and then finding the partial pressure of each component using the mol fractions, but it doesn't work out. Could anyone please help? Thank you!