Question

I need help arranging each group in order of decreasingstandard molar entropy. a) Mg metal, Ca metal, Ba metal b) Hexane(C6H14), benzene(C6H6), cyclohexane(C6H12). c) PF2Cl3(g),PF5(g), PF3(g)

Other
ANSWERED
asked 2020-11-26
I need help arranging each group in order of decreasingstandard molar entropy.
a) Mg metal, Ca metal, Ba metal
b) Hexane(C6H14), benzene(C6H6), cyclohexane(C6H12).
c) PF2Cl3(g),PF5(g), PF3(g)

Answers (1)

2020-11-27
Remember one thing entropy decreases in the order
gas > liq > solid
a) all are metal solid but the molar entropy increases from top to bottom in agroup as the size of the metal increases thus Ba > Ca > Mg
b) Hexane(C6H14), benzene(C6H6),cyclohexane(C6H12).
If all are liquid then the molar entropy decreases asthe size of the compound decreases.
Hexanne > cyclohexane > benzene
c) PF2Cl3(g), PF5(g), PF3(g)
PF2Cl3 > PF5 > PF3
0
 
Best answer

expert advice

Have a similar question?
We can deal with it in 3 hours

Relevant Questions

asked 2021-02-25
We will now add support for register-memory ALU operations to the classic five-stage RISC pipeline. To offset this increase in complexity, all memory addressing will be restricted to register indirect (i.e., all addresses are simply a value held in a register; no offset or displacement may be added to the register value). For example, the register-memory instruction add x4, x5, (x1) means add the contents of register x5 to the contents of the memory location with address equal to the value in register x1 and put the sum in register x4. Register-register ALU operations are unchanged. The following items apply to the integer RISC pipeline:
a. List a rearranged order of the five traditional stages of the RISC pipeline that will support register-memory operations implemented exclusively by register indirect addressing.
b. Describe what new forwarding paths are needed for the rearranged pipeline by stating the source, destination, and information transferred on each needed new path.
c. For the reordered stages of the RISC pipeline, what new data hazards are created by this addressing mode? Give an instruction sequence illustrating each new hazard.
d. List all of the ways that the RISC pipeline with register-memory ALU operations can have a different instruction count for a given program than the original RISC pipeline. Give a pair of specific instruction sequences, one for the original pipeline and one for the rearranged pipeline, to illustrate each way.
Hint for (d): Give a pair of instruction sequences where the RISC pipeline has “more” instructions than the reg-mem architecture. Also give a pair of instruction sequences where the RISC pipeline has “fewer” instructions than the reg-mem architecture.
asked 2021-03-22
A 0.100 m \(\displaystyle{K}_{{2}}{S}{O}_{{4}}\) solution has a freezing point of \(\displaystyle{\left(-{0.43}\right)}^{\circ}\) C. What is the Van Hoff factor (i) forthe solution? \(\displaystyle{K}_{{f}}={1.86}^{\circ}{C}\). What is the molar mass (MW) of glucose?
asked 2021-02-14
Mg reacts with H+ (aq) according to
\(\displaystyle{M}{g{{\left({s}\right)}}}+{2}{H}+{\left({a}{q}\right)}\to{M}{g}_{{2}}+{\left({a}{q}\right)}+{H}_{{2}}{\left({g}\right)}\)
Suppose that 0.524 g of Mg is reacted with 60.o ml of 1.0 M H+(aq). Assume that the density of the H+ (aq) solution os 1.00 g/ml,and that its specific heat capacity equals that of water. Theinitial and final temperatures are 22.0 degree celsius and 65.8degree celsius.
a) Is the reaction endothermic or exothermic?
b) Calculate \(\displaystyle\triangle{H}\) of of th reaction. Use correct sigs andgive units.
c) Calculate the \(\displaystyle\triangle{H}\) of the reaction per mole of magnesium.
asked 2021-05-18
What is the expected order of elution of the following compounds from a chromatography column packed with silica gel,eluting with hexane/ethyl acetate?



...