Some people believe that if by placing a cold spoon in a cup of hot coffee, it will cool it enough to drink it comfortably. Let’s test this. If you have silver spoon that has been chilled at T= 10.0 oC (let’s say mass = 100.0 g, assume 100% Ag, specific heat =0.235 J/g oC), and you place it in a 240. mL cup of coffee that is at T= 90.0 oC (a typical temperature at a McDonald’s restaurant) . What will the final temperature of the coffee? [Food for thought, if you spill this coffee, will it be hot enough to give you 3rd degree burns? (based on an actual lawsuit)]

adding or remove a gaseous reactant or product changes the concentrations. if the concentration of reactant or product is increased, the system will shift away from the side in which concentration was increased (i.e. if the concentration of reactants is increased, the system will shift toward the products. if more products are added, the system will shift to form more reactants). conversely, if the concentration of reactant or product is decreased, the system will shift toward the side in which concentration was decreased (i.e. if reactants are removed, the system will shift to form more reactants. if the concentration of products is decreased, the equilibrium will shift toward the products).

explanation:

5.6⋅10−^19  j

do you need the explaination?