The equilibrium constant for this system is 8. 5 × 10–3. If the equilibrium concentration of NH3 is 9. 2 × 10–2 M, what is the equilibrium concentration of H2S? 9. 2 × 10–2 M 7. 8 × 10–4 M 1. 0 M 1. 1 × 101 M.

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.