Jayd

The partial pressure of CH4(g) is 0.185 atm and that of O2(g) is 0.300 atm in a mixture of the two gases. a) What is the mole fraction of each gas in the mixture? b) If the mixture occupies a volume of 11.5 L at 65 degress C, calculate the total number of...

C4H4 (g) + 2 H2 (g) --> C4H8 (g) Combustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 (-2341 kJ/m...

The total volume of hydrogen gas needed to fill the Hidenbrug was 2.0e8 L at 1.0 atm and 25 degrees Celsius. How much heat was evolved when the Hidenburg exploded, assuming all the hydrogen reacted? 2.0e8 L H2/22.4 L H2 = 8.9e6 mol H2 For every 2 mol H2 u...

The value of ^G for the following reaction is -5490 kJ. Use this value and data to calculate the standard free energy of formation for C4H10 (g). 2 C4H10 (g) + 13 O2 (g) --> 8 CO2 (g) + 10 H2o (l) Do you know the heats of formation for CO2 and H2O? Wouldn...

You drive your car from home at an average spped of 78km/h for 2 h. Halfway to your destination, you develop some engine problems, and for 4 h you nurse the car the rest of the way. What is your average velocity for the entire trip?

Car A is traveling at 84 km/h while Car B is traveling at 58 km/h. What is the relative velocity of Car A to Car B if they both are traveling in the same direction? What is the relative velocity of Car A to Car B if they are headed towards each other?

Car A is traveling at 84 km/h while Car B is traveling at 58 km/h. What is the relative velocity of Car A to Car B if they both are traveling in the same direction? What is the relative velocity of Car A to Car B if they are headed towards each other?

A rocket traveling at 165 m/s is accelerated at a rate of -32.0 m/s. a) How long will it take before the instantaneous speed is 0 m/s? It takes 5.156 s. b) How far will it travel during this time?

What is the maximum speed at which a car could be moving and not hit a barrier 35.0 m ahead if the average acceleration during braking is -10.0 m/s2 and it takes the driver 0.90 s before he applies the brakes?

A car moving with a constant acceleration covers the distance between two points 60 m apart in 6.0 s. Its velocity as it passes the second point is 17 m/s. a) What was the speed at the first point? b) What is the constant acceleration? c) How far behind t...

Kyle is flying a helicopter and it is rising at 4.0 m/s when he releases a bag. After 3.0s a) What is the bag's velocity? -25.4 b) How far has the bag fallen? -32.1 c) How far below the helicopter is the bag? Helicopter: a = -9.80 m/s^2 V = 4.0 m/s t = 3....

A 9 kg lead brick falls from a height of 1.8 m. a) Find the momentum as it reaches the ground. b) What impulse is needed to bring the brick to rest? c) The brick falls onto a carpet 2.0 cm thick. Assuming the force stopping it is constant, find the averag...

This is the answer that I got when I worked it, but the webassign homework that I have marked the answer incorrect. I thought that maybe I was doing something wrong or missing an important part of the problem, thus causing my answer to be wrong.

The answer would be 52 km/h.

Velocity = displacement/time Relative velocity = velocity with which a body approaches or recedes from another body Would you add the speeds of both cars in order to find the relative velocity between the two when they are traveling in the same direction...

acceleration = -32.0 m/s vf = 165 m/s vi = 0 d = ? Vf^2 = Vi^2 + 2ad d = Vf^2 - Vf^2/2a

35 - (.9)(-10.0) = 44 V = 29.664 and this is incorrect Do I use the acceleration for the velocity or do I figure out the velocity from the informatin given?

d = 165^2/(2 x 32.0) d = 425.390

When I solve for a I get the .061 and this is incorrect for the constant acceleration. I don't know what I am going wrong.

12 - -32.1 = 44.1 I did not think it was this easy. I plugged the data into like four formulas trying to come up with an answer.

When I solve for a I get the .061 and this is incorrect for the constant acceleration. I don't know what I am going wrong.