## Question

###### Problem %. 20 pts. Suppose we prepare |.,397kg of henzene S0 that it Is exaetly its melting/freezing point. bur still entirely liquid, and we immediately place it in a refrigirator: Suppose the refrigerator Ikes away hent frm the henzene Neady rale P . Suppose further (hat it takes 2960 completely treeze the benzene Iromn the moment is placed into the refrigeralor; What fs F'! (Don"forgetto include units') The latent hent f melting O benzene fs 4.27x 16'J/kg:

Problem %. 20 pts. Suppose we prepare |.,397kg of henzene S0 that it Is exaetly its melting/freezing point. bur still entirely liquid, and we immediately place it in a refrigirator: Suppose the refrigerator Ikes away hent frm the henzene Neady rale P . Suppose further (hat it takes 2960 completely treeze the benzene Iromn the moment is placed into the refrigeralor; What fs F'! (Don"forgetto include units') The latent hent f melting O benzene fs 4.27x 16'J/kg:

## Answers

#### Similar Solved Questions

5 answers

##### 10. CaO(s) reacts with water to formn Ca(OH)z(aq) . If 6.50 g CaO is combined with 99.70 g HzO coffee cup calorimeter _ the temperature of the resulting solution increnses from 21.7C to 43.1"C. Calculate the enthalpy change for the reaction per mole of CaO Assume that the specific heat capacity of the solution is 418 J/g-K (0) -1.45 kJ/mol (b) 82.0 kJ/mol (c) -9.42 kI/mol (d) -165 kl/mol ~532 kJ/mol

10. CaO(s) reacts with water to formn Ca(OH)z(aq) . If 6.50 g CaO is combined with 99.70 g HzO coffee cup calorimeter _ the temperature of the resulting solution increnses from 21.7C to 43.1"C. Calculate the enthalpy change for the reaction per mole of CaO Assume that the specific heat capacity...

5 answers

##### Q2 5 points)A bank gives 100 people each oan of S1,000 for one year at an interest rate The bank expects that 5 among the 100 people will not pay back their loansz these 5 people do not pay any interest, either: The bank has refinancing costs at 3% interest rate compounded annually; which means that the bank pays 3% annual interest on the money that it gives to each clients.(a) [2 points] What is the annually compounded interest rate (as percentage rounded t0 two decimal places) that the bank sh

Q2 5 points) A bank gives 100 people each oan of S1,000 for one year at an interest rate The bank expects that 5 among the 100 people will not pay back their loansz these 5 people do not pay any interest, either: The bank has refinancing costs at 3% interest rate compounded annually; which means tha...

5 answers

##### The with (9) minimum 2 (e) an Write value accuracy the out the If(z) ] Taylor'$ Taylor Choose I four 23 problemz the degree e2r range among of 0 around bounded Ge 2 V 4 0.25 , (2)f required, [ which

the with (9) minimum 2 (e) an Write value accuracy the out the If(z) ] Taylor'$ Taylor Choose I four 23 problemz the degree e2r range among of 0 around bounded Ge 2 V 4 0.25 , (2)f required, [ which...

5 answers

##### 3. The system differential equation is as follows: '"0+6" 40+12 9 "+1sdy()_ Ios6t) = sd.uQ+Isdu) + IOu() Obtain the system $ state-space representation.

3. The system differential equation is as follows: '"0+6" 40+12 9 "+1sdy()_ Ios6t) = sd.uQ+Isdu) + IOu() Obtain the system $ state-space representation....

5 answers

##### Ca (w%)Mg (wt%)Depth (m)CalaMelwic)Mg (w%| and Ca (w%l per 10 Metars100 110 120 130 140 150 160 170 180 190 20010.1E 100=7,7367<+ 40.164 F004ZAv=1,9075 + 41,1n2 0,014-

Ca (w%) Mg (wt%) Depth (m) Cala Melwic) Mg (w%| and Ca (w%l per 10 Metars 100 110 120 130 140 150 160 170 180 190 200 10.1 E 100 =7,7367<+ 40.164 F004ZA v=1,9075 + 41,1n2 0,014-...

5 answers

##### TABLE 12-9 Distributron 0f Weckl Demand by Product and Customar Printers acannen Computer Mean Mcjn Mean Co0 Coo Ood L,coo Target Loco 7C0 500 860 4500 SD0 Best Buy 760 600 220 6C0 2080 600 7D0 Oifa Nut 800 400 900 5C0 1.400 500 Stepes 560

TABLE 12-9 Distributron 0f Weckl Demand by Product and Customar Printers acannen Computer Mean Mcjn Mean Co0 Coo Ood L,coo Target Loco 7C0 500 860 4500 SD0 Best Buy 760 600 220 6C0 2080 600 7D0 Oifa Nut 800 400 900 5C0 1.400 500 Stepes 560...

5 answers

##### Light-rail commuter train blows its 200 Hz horn as it approaches crossing_ The speed of sound is 337 m/s_ (J) An observer waiting at the crossing receives frequency of 221 Hz. What is the speed of the train? m/sWhat frequency does the observer receive as the train moves away?

light-rail commuter train blows its 200 Hz horn as it approaches crossing_ The speed of sound is 337 m/s_ (J) An observer waiting at the crossing receives frequency of 221 Hz. What is the speed of the train? m/s What frequency does the observer receive as the train moves away?...

5 answers

##### Reglon R In thc plane given. where the sIdcs parallel comma-separatad Iist of equations R Iles between circle 5equations (ol(anttormationthat maps rectanquiar rediom the WV-plane 3725 (Let play the role the role Enter Vur unswensthe flrat duadeani

reglon R In thc plane given. where the sIdcs parallel comma-separatad Iist of equations R Iles between circle 5 equations (ol (anttormation that maps rectanquiar rediom the WV-plane 3725 (Let play the role the role Enter Vur unswens the flrat duadeani...

5 answers

##### La figura muestra la conexion de tres capacitores, donde C1 = 7uF , Cz 8pF y C3 9uF . La combinacion de capacitores esta conectada a un potencial Vab de 9 V aplicado entre los puntos a y b. Escriba todas sus respuestas con 2 lugares decimales.C3C2C1A. [2 puntos] ;Cual es Ia carga en el capacitor C1? pCB. [3 puntos] zCuanto es la capacitancia equivalente Ceq del circuito entre a y b? pFC. [2 puntos] .Cuanto es Ia carga equivalente en el circuito Qeq pC

La figura muestra la conexion de tres capacitores, donde C1 = 7uF , Cz 8pF y C3 9uF . La combinacion de capacitores esta conectada a un potencial Vab de 9 V aplicado entre los puntos a y b. Escriba todas sus respuestas con 2 lugares decimales. C3 C2 C1 A. [2 puntos] ;Cual es Ia carga en el capacitor...

1 answers

##### A gas sample undergoes a reversible isothermal expansion. Figure $20-23$ gives the change $\Delta S$ in entropy of the gas versus the final volume $V_{f}$ of the gas. The scale of the vertical axis is set by $\Delta S_{s}=64 \mathrm{~J} / \mathrm{K} .$ How many moles are in the sample?

A gas sample undergoes a reversible isothermal expansion. Figure $20-23$ gives the change $\Delta S$ in entropy of the gas versus the final volume $V_{f}$ of the gas. The scale of the vertical axis is set by $\Delta S_{s}=64 \mathrm{~J} / \mathrm{K} .$ How many moles are in the sample?...

1 answers

##### (This exercise refers to Example 8.) Let $y=\frac{(x-3)(x+2)}{(x+1)(x-2)}$ Verify each of the following approximations. (a) When $x$ is close to $-2,$ then $y \approx-\frac{5}{4}(x+2)$ (b) When $x$ is close to $-1,$ then $y \approx \frac{4 / 3}{x+1}$ (c) When $x$ is close to $2,$ then $y \approx \frac{-4 / 3}{x-2}$

(This exercise refers to Example 8.) Let $y=\frac{(x-3)(x+2)}{(x+1)(x-2)}$ Verify each of the following approximations. (a) When $x$ is close to $-2,$ then $y \approx-\frac{5}{4}(x+2)$ (b) When $x$ is close to $-1,$ then $y \approx \frac{4 / 3}{x+1}$ (c) When $x$ is close to $2,$ then $y \approx \fr...

5 answers

##### Subtract. Use a horizontal format.What is $7 m^{2}-3 m-6$ minus $2 m^{2}-m+5 ?$

Subtract. Use a horizontal format. What is $7 m^{2}-3 m-6$ minus $2 m^{2}-m+5 ?$...

5 answers

##### Writing Write a short paragraph describing three different functions that represent the behaviors ofquantities between 1995 and $2006 .$ Describe one quantity that decreased during this time, one that increased, and one that was constant. Present your results graphically.

Writing Write a short paragraph describing three different functions that represent the behaviors of quantities between 1995 and $2006 .$ Describe one quantity that decreased during this time, one that increased, and one that was constant. Present your results graphically....

5 answers

##### Nine students took the SAT, Their scores are listed below: Later on, they read book on test preparation and retook the SAT: Their new scores are listed below: Construct 95% confidence interval for Hd Assume that the differences are normally distributedStudent Scores before reading book 720 860 850 880 860 710 850 1200 950 Scores after reading book 740 860 840 920 890 720 840 1240 970(1.651, 30.590) (-20.341, 4.852) (-10.321, 15.438) (-30.496, 0.615)

Nine students took the SAT, Their scores are listed below: Later on, they read book on test preparation and retook the SAT: Their new scores are listed below: Construct 95% confidence interval for Hd Assume that the differences are normally distributed Student Scores before reading book 720 860 850 ...

5 answers

##### PLEASE DONT COPY OTHER CHEGG ANSWERS , IF YOU DONT KNOW PLEASESKIP , LET OTHERS DO CORECTLY House: You are observing six patients, A, B, C, D, E and F, forCOVID19. Three patients, B, D and E, are asymptomatic. Patients A,B, E and F have been tested. Patients A and E tested negative. Thefalse-positive rate is 10%, the false-negative rate is 0%.a. What is the test status of patients B, C, D and F?b. Which patients are symptomatic?c.

PLEASE DONT COPY OTHER CHEGG ANSWERS , IF YOU DONT KNOW PLEASE SKIP , LET OTHERS DO CORECTLY House: You are observing six patients, A, B, C, D, E and F, for COVID19. Three patients, B, D and E, are asymptomatic. Patients A, B, E ...

5 answers

##### The air in a room with volume 8Ornes contains 0.15% carbon dioxide initially. Fresher air with only 0.05% carbon dioxide flows into the IOOm at & rate of 2mn3 min and tbe mixed air Hows out at thc samc ratc. Find the pcrccntagc of carbon dioxide in thc room as a function of timc What happens in the long run? Hint: If C(t) is thee amount of carbon dioxide in the room at time / and the amount of air in the IOOm at &ll times is 18Orn? then the percentage of carbon dioxide in the TOom at tim

The air in a room with volume 8Ornes contains 0.15% carbon dioxide initially. Fresher air with only 0.05% carbon dioxide flows into the IOOm at & rate of 2mn3 min and tbe mixed air Hows out at thc samc ratc. Find the pcrccntagc of carbon dioxide in thc room as a function of timc What happens in ...

5 answers

##### (15 pts) (a) Find the potential of point with respect to point b in the figure (b) If points and are connected by wire with negligible resistance, find the current in the 12.0-V battery. L.(L 120 VL.(=61.0042 iQov 20() LM L.0M2 8ovsW 2.0 (2 m+l2()IE

(15 pts) (a) Find the potential of point with respect to point b in the figure (b) If points and are connected by wire with negligible resistance, find the current in the 12.0-V battery. L.(L 120 V L.(= 61.0042 iQov 20() LM L.0M2 8ovsW 2.0 (2 m+l 2()IE...

5 answers

##### Question 6Which of the following monosaccharides has a structure in which two or more chiral centers are present?glyceraldehydedihydroxyacetoneglucoseno correct response

Question 6 Which of the following monosaccharides has a structure in which two or more chiral centers are present? glyceraldehyde dihydroxyacetone glucose no correct response...

5 answers

##### According recent survey 70% of students at High Expectations University are satislied with their education: Suppose random sample of 6 students is chosen. Find the probability of the given scenario: 11) AlI arc satisfied with thcir education:

According recent survey 70% of students at High Expectations University are satislied with their education: Suppose random sample of 6 students is chosen. Find the probability of the given scenario: 11) AlI arc satisfied with thcir education:...

5 answers

##### A 75-kg construction worker walks out along 10-meter Iong steel beam that is attached t0 the wall at one end_ and supported by cable at the other end The mass of the steel beam is [450-kg and the cable supporting the beam can supPort maximum load of 15.000-N What is the farthest distance from the wall that the worker can safely reach? (3Opts)

A 75-kg construction worker walks out along 10-meter Iong steel beam that is attached t0 the wall at one end_ and supported by cable at the other end The mass of the steel beam is [450-kg and the cable supporting the beam can supPort maximum load of 15.000-N What is the farthest distance from the wa...