A groundwater contains the following anion concentration ex- changer (NO3−N = 18 mg/L, SO42− = 50 mg/L, Cl− = 35 mg/L, and HCO − = 85 mg/L). Assuming nitrate is removed completely 3 from solution, calculate the equilibrium exchange capacity for each ion, and the maximum volume of water that can be treated per liter of resin, assuming equilibrium conditions. Assume total resin capacity of the SBA is equal to 1.4 eq/L.

Burgers vector is generally parallel to the dislocation line. a)-true b)-false

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factor·n". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed. gi) ifn 1, what will happen to the material when transformed material when