Duff states that equal masses of all substances have equal changes in internal energy when they have equal changes in temperature. Javan states that the change in internal energy is equal to a constant times the change in temperature for every ?T, no matter how large or how small ?T is, but that the constant is different for different substances. Which one, if either, is correct?
A. Neither, because the specific heat depends on the substance and may vary with temperature.
B. Neither, because a change of state may involve release or absorption of latent heat.
C. Neither because a substance may do work during a temperature change.
D. All of the statements above are correct.
E. Only statements (a) and (b) are correct.
Answer: D
You might also like to view...
Al is moving by you at a very high speed (close to the speed of light). You get out a clock and measure 10 seconds going by. If you also watch a clock in Al's ship, how much time will you see it record during your 10 seconds?
A) You will see Al's clock record less than 10 seconds. B) You will see Al's clock record more than 10 seconds. C) You will see Al's clock agree that 10 seconds go by.
Humans are scientifically classified as Homo sapiens. In this system, the word sapiens refers to the
A) genus B) species C) order D) family
A car is traveling at 20.0 m/s on tires with a diameter of 70.0 cm. The car slows to a rest after traveling 300.0 m
If the tires rolled without slipping, what was the magnitude of the average angular acceleration of the tires during the time the car slowed to a rest? A) 0.667 rad/s2 B) 1.33 rad/s2 C) 0.952 rad/s2 D) 1.67 rad/s2 E) 1.90 rad/s2
Which of these statements about electron energy levels in hydrogen atoms is true?
A. An electron with a positive total energy is a bound electron. B. The orbital angular momentum of an electron in the ground state is zero. C. An electron in the hydrogen atom is best represented as a traveling wave. D. An electron in state n can make transitions only to the state n + 1 or n - 1.