During the time that latent heat is involved in a change of state:
A. the temperature does not change
B. the substance always expands
C. a chemical reaction takes place
D. molecular activity remains constant
E. kinetic energy changes into potential energy
Answer: A. the temperature does not change
You might also like to view...
Graphical Addition: The sum of two vectors of fixed magnitudes has its minimum magnitude when the angle between these vectors is
A. 0°. B. 90°. C. 270°. D. 180°. E. 360°.
What is the name of the galaxy cluster to which the Milky Way belongs?
A. the Scorpius group B. the Sagittarius cloud C. M31 D. the local group E. the Virgo cluster
During a thunderstorm, an observer notes that 10 s elapsed between the lightning flash and the sound of the thunder. What is the approximate distance, in miles, from the observer to the lightning?
a. 10 mi b. 50 mi c. 2 mi d. 100 mi
The moon has an angular diameter of 0.5°. What is the moon's angular diameter in minutes of arc?
a. 0.5 b. 30 c. 50 d. 1800 e. 60.5