A flask has 159 mL of SO2 at 298K and 1.8atm pressure. Another flask contains 253mL of N2 at 298K and 3.3 atm. What is the final pressure if the contents of these two flasks are transferred into a 1.00L container at 298K? The molar mass of SO2is64.066 g/mol and the molar mass of N2 is 28.01 g/mol.

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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.