Question

When answering this could you please write out your steps so i can better understand it,...

When answering this could you please write out your steps so i can better understand it, Thank you!!!

I apologize for the long question, it is all related and i don't know if posting them separately would confuse people.

Suppose system A having a (constant) temperature of 53°C loses 19 mega-joules
through heat loss to system B having a (constant) temperature of 15°C. What is the
entropy loss of system A?
a. -1.34 x 105 J/K
b. -8.16 x 104 J/K
c. -5.83 x 104 J/K
d. -1.11 x 105 J/K
The entropy change of system B is:
a. 1.45 x 105 J/K
b. 6.6 x 104 J/K
c. 1.98 x 105 J/K
d. 2.64 x 104 J/K
The entropy change of the entire Universe caused by this process is therefore:
a. 1.77 x 104 J/K
b. 7.69 x 103 J/K
c. 3.85 x 103 J/K
d. 2.15 x 104 J/K
What is the entropy increase of 5 moles of an ideal gas (just the gas) if it is
isothermally expanded to twice its initial volume?
a. 0 J/K
b. 28.8 J/K
c. 8.64 J/K
d. 43.2 J/K
What is the entropy of the Universe overall associated with the isothermal
expansion in the previous question?
a. 28.8 J/K
b. 43.2 J/K
c. 0 J/K
d. 8.64 J/K
What is the entropy increase of the same sample of gas (just the gas) if it is
instead freely expanded to twice its initial volume?
a. 43.2 J/K
b. 28.8 J/K
c. 8.64 J/K
d. 0 J/K
What is the entropy of the Universe overall associated with the free adiabatic
expansion in the previous question?
a. 0 J/K
b. 28.8 J/K
c. 43.2 J/K
d. 8.64 J/K

Science   Advanced-Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Please show all work so that i can understand. thank you A.) Which of the following...
Please show all work so that i can understand. thank you A.) Which of the following processes have a ΔS > 0? a.CH3OH(l) → CH3OH(s) b.Na2CO3(s) + H2O(g) + CO2(g) → 2 NaHCO3(s) c. CH4(g) + H2O(g) → CO(g) + 3 H2(g) d. N2(g) + 3 H2(g) → 2 NH3(g) e. All of the above processes have a ΔS > 0. B.) If ΔG > 0, which of the following statements are true? a. The reaction is at equilibrium. b....
1. AgCl (s) <-> Ag+ (aq) + Cl- (aq) Ksp = 1.8 x 10^-10 Ag+ (aq)...
1. AgCl (s) <-> Ag+ (aq) + Cl- (aq) Ksp = 1.8 x 10^-10 Ag+ (aq) + 2S2O3^2- (aq) <-> Ag(S2O3)2^3- Kf = 2.9 x 10^13 Consider the two above equilibria. If sodium thiosulfate solution were added to a solution containing the silver chloride equilirbium (first equilibrium above) the silver chloride equilibrium would shift toward the reactants (TRUE OR FALSE) 2. AgCl (s) <-> Ag+ (aq) + Cl- (aq) Ksp = 1.8 x 10^-10 Ag+ (aq) + 2S2O3^2- (aq) <->...
*******please don't copy and paste and don't use handwriting **** Q1: Using the below given ASCII...
*******please don't copy and paste and don't use handwriting **** Q1: Using the below given ASCII table (lowercase letters) convert the sentence “welcome to cci college” into binary values. a - 97 b - 98 c - 99 d - 100 e - 101 f - 102 g - 103 h - 104 i - 105 j - 106 k - 107 l - 108 m - 109 n - 110 o - 111 p - 112 q - 113...
I already have parts A through D, so no need to work those out again. Just...
I already have parts A through D, so no need to work those out again. Just need E through P. Thanks. Three small balls of mass 3.7 kg, 2.4 kg, and 3 kg are connected by light rods laying along the y-axis. The rod connecting the first and second balls is 4.8 m long and the rod connecting the second and third balls is 1.9 m. The entire system rotates around the x-axis, which is between the first and second...
Please answer all the question or i wont rate your answer. Thank you Let Z be...
Please answer all the question or i wont rate your answer. Thank you Let Z be a standard normal random variable and calculate the following probabilities, drawing pictures wherever appropriate. (Round your answers to four decimal places.) (a)    P(0 ≤ Z ≤ 2.22) (b)    P(0 ≤ Z ≤ 2) (c)    P(−2.60 ≤ Z ≤ 0) (d)    P(−2.60 ≤ Z ≤ 2.60) (e)    P(Z ≤ 1.32) (f)    P(−1.05 ≤ Z) (g)    P(−1.60 ≤ Z ≤ 2.00) (h)    P(1.32 ≤ Z ≤ 2.50) (i)    P(1.60 ≤ Z) (j)    P(|Z| ≤ 2.50)
Can you please check my answers and tell me if they are correct? thanks 8. Write...
Can you please check my answers and tell me if they are correct? thanks 8. Write the ionic equation for dissolution and the solubility product (Ksp) expression for each of the following slightly soluble ionic compounds: (a) PbCl2       PbCl2(s) --> Pb2+(aq) + 2Cl-(aq)                           Ksp = [Pb2+][Cl-]2   (b) Ag2S        Ag2S(s) --> 2Ag+(aq) + S2-(aq)                             Ksp =[Ag+]2[S2-] (c) Sr3(PO4)2 Sr3(PO4)2(s) --> 3Sr2+(aq) + 2PO43-(aq)         Ksp =[Sr2+]3[PO43-]2 (d) SrSO4       SrSO4(s) --> Sr2+(aq) + SO42-(aq)                       Ksp =[Sr2+][SO42-] 14. Assuming that no equilibria other than dissolution are involved,...
1. The equation Δ?=?0?+0.5??2Δx=v0t+0.5at2 Can be used to describe an object's position x. When can this...
1. The equation Δ?=?0?+0.5??2Δx=v0t+0.5at2 Can be used to describe an object's position x. When can this equation be applied? Group of answer choices: A. Displacement must be constant B. The object must be acted on by no more than one force C. Velocity must be constant D. Acceleration must be constant E. The force acting on the object must be gravity 2. If a vector A has a y component equal to |?|cos?|A|cos⁡θ, then the angle ?θ is the angle...
I am working through review problems and was stuck on this question, could you please guide...
I am working through review problems and was stuck on this question, could you please guide me on how to approach this type of problem? Thank you! You are investing your money in two hedge funds and want to split your cash among two funds, Fund A and Fund B. If you invest $x dollars in Fund A, its worth after one year is distributed as a Normal (µA = 1.05x, σA2 = .02x2 ). If instead you invest $x...
Please answer parts A-K. Thank you! Part A How many mm^3 are in 2.20 ft^3 Part...
Please answer parts A-K. Thank you! Part A How many mm^3 are in 2.20 ft^3 Part B A lead ball has a mass of 25 pounds and a density of 11.4 g/cm^3. What is the volume of the ball in ml? Part C How many low dose 81 mg aspirin tablets can be made from 25.0 pounds of aspirin? Part D How much heat in kJ is needed to raise the temperature of 60.0 gal of water from 25.0°C to...
please answear each question 1)At equilibrium, ________. a)the rates of the forward and reverse reactions are...
please answear each question 1)At equilibrium, ________. a)the rates of the forward and reverse reactions are equal b)the value of the equilibrium constant is 1 c)all chemical reactions have ceased d)the rate constants of the forward and reverse reactions are equal e)the limiting reagent has been consumed 2)The equilibrium-constant expression depends on the ________ of the reaction. a) stoichiometry b) mechanism c) the quantities of reactants and products initially present d) temperature e) stoichiometry and mechanism 3)Given the following reaction...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT