>Lecture 36SummaryThermal expansionSpecific heatConduction, convection, radiationClass QuizChapter 17Reading QuizThe right gas lawderivationratiosExample #1Example #2Example #3
Kinetic theory of gasesintroduction molecular movement appletaverage KEExample #4Example #5speed distribution appletExample #6Walker4 16.31 two objects make of the same product have different temperatures. Thing A has actually mass m and object B has actually mass 2m. If the two objects are carried into thermal contact,object B provides up an ext heat and changes its temperature more than object A.the warm released by one thing is soaked up by the other, and also the temperature adjust of each is the same due to the fact that the particular heats room the same.the warmth released by one object is soaked up by the other, and also the temperature adjust of object A is bigger than the temperature adjust of B.object A changes its temperature much less than thing B due to the fact that the warmth exchanged per mass must be the very same for each.AnswerWalker4eReading quiz
feeling a little bit cool, you revolve up the thermostat in her living room. A quick time later on the wait is warmer. If the room is fine sealed, the press of the waiting is _____ that was prior to you turned up the heat.A. Better than B. Much less than C. The very same as Answerklm The absolute temperature of perfect gas is _____ if the volume that the sealed container is halved at continuous pressure?A. Reduced to ¼B. Reduced to ½ C. The sameD. Double Answersj6 19.44 A 2.50-m-high diving bell is lowered into 1025 kg/m3 sea water in ~ 20°C. At 82.3 m of depth and 4.0°C, exactly how high does sea water rise into the bell?A. 2.50 mB. 2.24 m C. 1.87 mD. 0.26 m Answergc6 q13.16 When perfect gas at 300 K expands versus a piston the volume doubles and also the pressure drops come 38% that its initial value. What is the final temperature of the gas?A. 300 KB. 394 KC. 1579 KD. 228 KAnswergc6 q11.20 N2 molecules space lighter than O2 molecules. Do you expect an ext N2 or an ext O2 at high altitudes in Earth"s atmosphere?A. More N2B. An ext O2C. The same ratio as at short altitudeAnswersj6 21.4 A 5.00-L vessel consists of 2 mol that oxygen gas at P=8.00 atm. Discover the average translational kinetic energy of the O2 molecules.A. 1.74×10−19 JB. 5.03×10−21 JC. 6.82×10−25 JD. 3.19×10−27 JAnswersj6 21.42 A gas is at 0°C. What DT is forced to dual vrms?A. 4°CB. 199°CC. 273°CD. 819°CAnswer C. The warmth released by one thing is took in by the other, and also the temperature adjust of object A is larger than the temperature readjust of B.Suppose object A is hotter. The loses warm of magnitude Q and also object B gains heat of size Q. With the exact same magnitude of heat involved, and also the reality that the specific heats space the same, you can see native Q = mcΔT that the smaller object A will readjust its temperature through a larger amount than the larger object B. A. Higher than greater temperature method the molecule will have actually a higher kinetic energy and will collide v the wall surfaces of the room more often and with greater force. We because of this expect the press to increase. If the pressure were to be maintained constant, air would leave the room so that fewer molecules will collide with an ext force v the walls. Friend can likewise think of this in terms of the thermal development of air. B. Reduced to ½
B. 2.24 m
D. 228 K
A. More N2Imagine every molecule is launched upwards v the very same kinetic energy(because they room at the same temperature). They will each gain the same amount of gravitational potential energy mgy, yet N2 will accomplish a greater altitude y since it has a smaller mass m. B.

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5.03×10−21 J
D. 819°C