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bond molar bond enthalpy/kj mol^-1N-H 392H-H 436N=N (triple bond) 945reaction 1: N2 (g) + 3H2 (g) = 2NH3(g)
Use the molar bond enthalpies above to show the overall enthalpy change for reaction one is -93kj mol^-1show all steps in the calculation clearly.
State whether the reaction is endo or exothermic - i think it is exothermic and sketch a labelled diagram showing the internal energy changes for this reaction.
Write down the expression for the equilibrium constant k for the reaction. At 25 degrees celcuis the equilibrium concentrations of N2 are 1.0 x x10^-2,H2 is 1.1 x 10 ^-2 moldm^-3 and for NH3 it is 9.8 x 10^-1.
Use these values to calculate the value ok K at this temperature
A ring with radius R has a total charge Q uniformly distributed around it. To leading order, find the electric field at a point along the axis of the ring, a very small distance z from the center
A cosmic-ray proton in interstellar space has an energy of 10 MeV and executes a circular orbit having a radius equal to that of Mercury's orbit around Sun (5.80 × 1010 m). What is the magnetic field in that region of space.
An object is placed directly between a large planet and a star. Find the distance from the planet for which the net gravitational force exerted by the planet and by the star on this object is zero. DATA: Mstar= 1.90E+30 kg, Mplanet= 6.90E+25 kg, Dpla..
the charges and coordinates of two charged particles held fixed in an xy plane are q1 3.10 ?c x1 4.39 cm y1 -0.0920
a 10 ft long chain rests on a frictionless horizontal table such that half of its length is stretched out on the table
A fixed 0.15 kg solid-disk pulley with a radius of 0.060 m is acted on by a net torque of 5.4 m�·N. What is the angular acceleration of the pulley
A cannon shell is fired from a battleship with an initial speed of 664 m/s, ignore air drag and assume the shell lands at the same height as it is launched. what is the maximum height reached by the shell
Maricru slides a 60.0-kg crate up an inclined ramp that is2.0-m longg and attached to a platform 1.0 m above floor level... A400.0-N force parrallel to the ramp, is needed to slide the crateup the ramp at a constant speed.
Two simple pendulums have length of 81-cm and 64-cm they are released from the same angular position at the same instant. After how much time would they both arrive at their initial position simultaneously.
Consider a concave mirror with a focal length of 18.90 cm. Find the location of the image when the object is 10.20 cm from the mirror. What is the magnification of the image? What is the radius of curvature of the mirror in cm? Is is virtual and u..
A 58 kg man is riding on a 50 kg cart traveling at a speed of 3.1 m/s. He jumps off with zero horizontal speedrelative to the ground. What is the resulting change in the cart's speed
Two trains are traveling toward each other at 31.0 m/s relative to the ground. One train isblowing a whistle at 1230 Hz. What frequency will be heard on the other train in still air
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