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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
The isotope 32/15P is produced by the reaction: n + ? --> 32/15P + p. What must be the target nucleus
A thin, horizontal, 10-cm-diameter copper plate is charged to 3.5nC. If the electrons are uniformly distributed on the surface, what are the strengths and direction of the electric field
A tennis ball is struck at the base line of the court, 13.3 m from the net. The ball is given an initialvelocity with a horizontal component equal to 22.0 m/s at an initial elevation of 1.45 m.
A body of mass 2.65 kg moves along the x-axis, and its motion is described by the equation x = 6 sin (13 t + 2), Find the resultant force on the body at t = 0.100 s
The rms speed of a sample of gas is increased by 3 percent. What is the percent change in the pressure of the gas
Compute your average velocity in the following two cases: (a) You walk 61.0 m at a speed of 2.26 m/s and then run 61.0 m at a speed of 3.38 m/s along a straight track. (b) You walk for 1.00 min at a speed of 2.26 m/s and then run for 1.85 min at 3..
A conductor of radius 10cm, length 5m and resistivity of 2.82 x 10-8 Ωm. What is the new resistance
A movable piston having a mass of 7 kg and a cross-sectional area of 6 cm2 traps 0.17 mol of an ideal gas in a vertical cylinder. The piston slides without friction in the cylinder. The outside of the cylinder is kept at atmospheric pressure, 1.01..
Four identical charged particles (q = +10.9 µC) are located on the corners of a rectangle as shown in the figure below. The dimensions of the rectangle are L = 56.4 cm and W = 14.9 cm
Coffee filters behave like small parachutes, with a drag force that is proportional to the velocity squared, Fdrag = Kv2. Find the time for the combined filters to reach the ground
A ball of mass 0.113 kg is dropped from a height of 1.92m above ground. The acceleration of gravity is 9.8m/s^2.Neglecting air resistance find the speed of the ball when it is at a height of 0.812 m above the ground. Answer in units of m/s.
Energy is produced with the sun by nuclear fusion reactions in which matter is converted into energy. We can measure that the Sun produces energy at the rate of 3.80×1026 W. How many tons of matter does the Sun lose each second?
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