Recent content by kittymaniac84

I don't know how to attempt this. I will find other places who can help.

forget it, I don't need the help anymore.

i see

Yes thank you. I already figured this out on my own. That is exactly what I did. Ea=100,232, A=8.47x10^9, and with T=425 I got 4.06x10^-3 for k. I hope i did the math right but it looks right.

If your not going to help, don't bother to post any rude comments. That is not how you help someone learn.

Excuse me, why the rude behavior? This is suppose to be a help forum. It might be obvious to you, but I'm not sure if I am using the equation right.

I did, but i duno about these 4 problems.

The equilibrium constant Kc for the reaction, PCl3 (g) + Cl2 (g) = PCL5 (g), equals 49 at 230°C. If 0.400 mol each of phosphorus trichloride and chlorine are added to a 4.0 Liter reaction vessel, what is the equilibrium composition of the mixture at 230°C?

A reaction of the form aA = products is second order with a rate constant of 0.169 L/(mol s). If the initial concentration of A is 0.159 mol/L, how many seconds would it take for the concentration of A to decrease to 6.07 x 10^-3 mol/L ? how to solve these

[SOLVED] need help At 77°C, 2 mols of nitrosyl bromide, NOBr, placed in a 1 liter flask dissociates to the extent of 9.4%; that is, for each mol of NOBr before reaction, (1.000-0.094) mol NOBr remains after dissociation. Calculate the value of Kc for the dissociation reaction. 2NOBr (g) =...

[SOLVED] Activation energy The reaction, 2NOCI (g) = 2NO (g) + Cl^{}_2{}(g) , has rate constant values for the reaction of NOCl of 9.3 x 10^-6 Is at 350 K and 6.9 x 10^-4 Is at 400 K. Calculate the activation energy for the reaction. What is the rate constant at 425 K? I am unsure how to...

ok that makes sense now. thank you

that was correct..thanx!

oh, so the height would be 3150*sin11.9= 649.54m GPE= 78.9*9.8*649.54=502,237.3J Is that right?

Homework Statement A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 3.14 x 10^5 N. In being launched from rest it moves through a distance of 85.1 m and has a kinetic energy of 5.63 x 10^7 J at...