In a sulphuric acid plant, the secondary converter is a tray type converter, 2.3 m in diameter with the catalyst arranged in 0.45 m thick. the catalyst is in the form of cylindrical pellets 9.5 mm in diameter and 9.5 mm long. the void fraction is 0.35. the gas enters the converter at 675 k and i atm. its inlet composition is: so3 6.6, s02 1.7, 02 10.0, n2 81.7 mol%. the gas flow rate is 0.68 kg/m2 s. calculate the pressure drop through the converter. (gas viscosity- 0.032x 1 10 pa s)

During metamorphic processes, increased pressure and temperature can affect the of minerals in rock. rocks subjected to very high pressure are typically than others because mineral grains are squeezed together, and the atoms are more closely packed. during metamorphic processes, water facilitates the transfer of ions between and within minerals, which can the rate at which metamorphic reactions take place. the growth of new minerals within a rock during metamorphism has been estimated to be about per million years. metamorphism is commonly associated with convergent plate boundaries, where two plates move toward each other. during contact metamorphism, a large intrusion will contain thermal energy and will cool much more slowly than a small one. metamorphosed sandstone is known as the metamorphic rock made from metamorphosed shale, was once used to make blackboards for classrooms.

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

In a copper wire, a temperature increase is the result of which of the following