Choose the one alternative that best competes the statement or answers the quest
ID: 3163600 • Letter: C
Question
Choose the one alternative that best competes the statement or answers the question. For numerical choices, select the closest answer. Your answer must be clearly written in the corresponding box of your answer sheet. What is your test version? A B C D The figure shows three linear temperature scales with freezing and boiling points of water indicated. Which of the following corresponds to the greatest change in temperature? All of these 25 R degree 25 S degree 25 U degree Which of the following best explains why water in a lake freezes from the top down? From 0 degree C to 4 degree C, water has a negative coefficient of volume expansion. From 0 degree C to 4 degree C, water has a positive thermal conductivity. From 0 degree C to 4 degree C, water has a negative thermal conductivity. Water has a relatively large specific heat. From 0 degree C to 4 degree C, water has a positive coefficient of volume expansion. On Earth, solar energy is harnessed through which type of heat transfer? Induction Conduction Convection Radiation Polarization A sealed, fixed-volume container is filled with an ideal gas at room temperature (293 K). If the gas it heat 500 K, what happens to the pressure and total random translational kinetic energy of the gas? Both the pressure and total kinetic energy remain constant. Both the pressure and total kinetic energy increase. Both the pressure and total kinetic energy decrease. The pressure increases while the total kinetic energy decreases The pressure decreases while the total kinetic energy increases.Explanation / Answer
2.
Change in temperature for Ro is, [20 oR - (-80 oR)] = 100 oR
Change in temperature for So is, [120 oS - 50 oS] = 70 oS
Change in temperature for Uo is, [300 oU - 225 oU] = 75 oU
Change in temperature is greatest for oR.
3.
Answer is A), it has negative coefficient of expansion up to 4 oC.
Normal liquids expand when they are heated. But for water it contract upon heating up to 4 degrees. So when they are cooled, they become denser and settles at the bottom of the lake.
4.
Sun's energy is transferred to earth via radiation.
5.
From ideal gas equation, PV = nRT.
Since it is sealed, Volume V remains fixed.
P = [nR/V] T
n, R and V are constants
P is proportional to T
So pressure will rise once temperature is increased
Kinetic energy is proportional to Temperature.
Kinetic energy will also increase with temperature.
The answer is B.