Mr. Pen SCIENTIFIC CALCULATOR D SHIFT ALPHA MODE CLR ON OO REPLAY X! nPr Rec( : 35 X -1 ncr Pol( X3 d/c 10* ex e ab/c X2 A log In A B sin D cos E tan F (=) hyp sin COS tan STO X ; Y M- M RCL ENG ( M+ DTL CL J INS OFF 7 8 9 DEL AC 4 5 6 X r S-SUM1 r S-VAR 1 1 2 3 + Rnd Ran # 7C DRG % 0 EXP Ans1. [-12 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A 1.50-kg iron horseshoe initially at 670\"C is dropped into a bucket containing 19.0 kg of water at 20.0\"0. What is the final temperature ofthe water- horseshoe system? Ignore the heat capacity of the container and assume a negligible amount of water boils away. l:l\"C Need Help? mm 2. [12 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The highest waterfall in the world is the Salto Angel in Venezuela. lts longest single falls has a height of 807 m. If water at the top of the falls is at 161C. what is the maximum temperature of the water at the bottom of the falls7 Assume all the kinetic energy of the water as it reaches the bottom goes into raising its temperature. :]C Need Help? .35:- Submit Answer 3. [42 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER In an insulated vessel. 264 g of ice at [TC is added to 650 g of water at 20.0\"0. [Assume the latent heat of fusion of the water is 3.33 x 'l 05 Ji'kg and the specific heat is 4.186 .Jfkg - \"(2.) (a) What is the final temperature of the system? S "C (b) How much ice remains when the system reaches eqUilibrium? :9 Heed Help? - 4. [-12 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER How much energy is reqUIred to change a 36 D-g ice cube from ice at 420C to steam at 108C? :] J Need Help? Submit Answer 5. [12 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A 4.20g lead bullet at 34.UC is fired at a speed of 230 mfs into a large block of ice at 0C. in which it becomes embedded. What quantity of ice melts? :ie Need Help? Submit Answer 6. [-11 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A thermodynamic system undergoes a process in which its internal energy decreases by 490 J. Oyerthe same time interval. 245 J of work is done on the system. Find the energy transferred from it by heat. :lJ Need Help? Submit Answer 7. [-12 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Consider the following gure. (The)! axis is marked in increments of 0.5 m3.) P(P:i] 170113) 0) (a) Determine the work done on a gas that expands from r'to fas indicated in the gure. :w (b) How much work Is performed on the gas lI it is compressed from fto i along the same path? :iw ~eed Help? 8. [12 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) An ideal gas is taken through a quasistatic process described by P = 0W2, with or = 14-0 atn'iilm, as shown in the gure. The gas is expanded to twice its original volume of 'l .00 m3. How much work (in MJ) is done on the expanding gas in this process? (b) What It"? How does the work done in part (a) compare to the lowest and highest possible amounts of work that can be done on this gas between the initial and final states if the pressure always remains between Pr- and Pf. and the volume always remains between V'- and Vi? (Enter your answers as percentages of the work done in part (a).) W Part (a) w . W X part (a) Need Help? 9. [-12 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An ideal gas initially at 265 K undergoes an isobaric expansion at 2.50 kPa. The volume increases from 1.00 m3 to 3.00 m3 and 10.4 N is transferred to the gas by heat. (a) What is the change in internal energy ofthe gas? :iw (b) What is the nal temperature of the gas? S K Need Help? Submit