How is the rate of a reaction affected when the temperature increases? A. The rate decreases because the products reform the reactants more quickly B. The rate decreases because the reactant particles move too quickly to react. C. The rate increases because the reactant particles collide more often. D. The rate increases because the equilibrium constant increases.​

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.