Which equation would you use to find the statistical definition of entropy? a. delta s = delta q/tb. s = klnw c. image belowd. s = w/t

  A

   δS = δQ/T

   Entropy:

   It is defined as randomness or disorder of molecular momentum. It is a measures molecular disorder of a system.

   It is popularly known as Gibbs entropy, defined by thermodynamics II law.

   Where δS =  change in entropy

               δQ = Heat transfer

                     = TH-TC

                    TH = temperature of source (High temperature reservoir)

                    Tc = temperature of sink (low temperature reservoir)

                     T = Temperature of source

    Entropy is a measure of number of possible microscopic states of a system in thermal equilibrium.

In equation S is the entropy also it is called as statistical entropy or thermodynamic entropy.    

  1.the balanced   chemical equation is as below

cu +   2 ag(no)₃ → cu(no₃)₂   +2 ag

2.the   much silver   produced   is   50.9 g

step 1: find the   moles of cu

moles =   mass÷   molar mass

  from periodic table the molar mass of cu = 63.5 g/mol

moles is therefore = 15.00 g÷ 63.5 g/mol = 0.236   moles

step 2: use the mole ratio to determine the   moles of ag

from equation above   cu: ag   is 1: 2

therefore the moles of ag   =0.236   moles   x 2/1 =0.472   moles

step 3: find the mass   of ag

mass = moles x molar mass

from periodic table   the molar mass of ag =107.87 g/mol

mass   = 0.472   moles x 107.87 g/mol = 50.9 g

3.   the   much   silver   collected worth is   1.797 oz

  convert   50.9 g   to oz

that is   1 gram = 0.0353 oz

          50.9 grams =?   oz

by cross multiplication

={(50.9 grams x 0.0353 oz) / 1   gram}   =1.797 oz