The heat capacity at constant volume and the heat capacity at constant pressure have different values because:
A. heat increases the temperature at constant volume but not at constant pressure
B. heat increases the temperature at constant pressure but not at constant volume
C. the system does work at constant volume but not at constant pressure
D. the system does work at constant pressure but not at constant volume
E. the system does more work at constant volume than at constant pressure
Answer: D. the system does work at constant pressure but not at constant volume
You might also like to view...
Blocks A and B of masses 18 kg and 19 kg, respectively, are connected by a rope, which passes over a light frictionless pulley, as shown
The horizontal surface is rough. The coefficients of static and kinetic friction are 0.40 and 0.20, respectively. External forces P and Q act on block B, as shown. In Figure 5.20, force P equals 76 N. The force Q for which the block descends at constant speed is closest to: A) 120 N B) 130 N C) 140 N D) 160 N E) 72 N
A double-convex lens is formed from a piece of plastic with an index of refraction of 1.70. The radius of the front surface has magnitude 20 cm, and the radius of the back surface has magnitude 30 cm. What is the focal length of this lens?
A) 86 cm B) -86 cm C) 43 cm D) -17 cm E) 17 cm
Displacement is which of the following types of quantities?
a. vector c. magnitude b. scalar d. dimensional
Galaxies contain less mass as dark matter than as visible stars
Indicate whether the statement is true or false