What temperature is the rate constant equal
A first order reaction has an Arrhenius constant for the reactionis 4.8 x 1011 sec -1, and an activation energy of 61.4 kJ. At what temperature (in Celsius) is the rate constant equal to 0.459 sec-1?
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Electrolysis of an alkaline earth mtal cloride using a current of 5.00 A for 748 sec. deposits .471g of metal at the cathode. what is the identity of the alkaline earth metal chloride?
Assume the water temperature is 25oC. The pressure in the smaller section is P1=300 kPa. Calculate the downstream pressure, P2, and estimate the error that would have occurred if Bernoulli's equation had been used.
Reconsider the same situation, except that now there is a point charge of +q on the plane and a point charge of -q at the other end of the guideline. In this case, the line breaks when the kinetic energy of the plane is 51.9 J. Find the magnitude
A physical fitness association is including the mile run in its secondary-school fitness test. The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 440 seconds and a standard deviation of 60
A 9.00 g bullet, moving horizontally with an initial speed v, embeds itself in a 1.20 kg pendulum bob that is initially at rest. The length of the pendulum is L = 0.700 m. After the collision, the pendulum swings to one side and comes to rest when
Air enters an evaporative cooler at 1 atmosphere, 36°C, and 20 percent relative humidity at a rate of 4 m3/min. Determine (a) the exit temperature of the air and (b) the required rate of water supply to the evaporative cooler.
A farmer was interested in determining how many grasshoppers were in his field. He knows that distribution of grasshoppers may not be normally distributed in his field due to growing conditions.
The acceleration is given by the vector a = 2.0 m/s2 + 5 m/s2 . (a) Find the velocity vector at t = 10.0 s. (b) Find the position vector at t = 1.0 s. (c) Give the magnitude and direction of the position vector in part (b).
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