When a beaker of water is heated over a bunsen burner, the volume increases slightly. what is the most likely reason for the small increase in volume?
a
the water molecules are getting smaller.
b
the water molecules are getting bigger.
c
the water molecules are moving faster.
d
the water molecules are moving slower.

most likely c

Explanation:

the volume is increased by the quickly moving water particles

Option C

Explanation:

The molecules has kinetic energy and potential energy both.  When the water molecules were heated  on a Bunsen Burner then there can be a slight increase in the volume of the water.

This is because upon heating the kinetic energy of the molecules increases and it starts moving fastly.

Due to the movement of the particles, they become far from each other and there is a slight increase in the volume of the water.

most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).