Step 1: Gather materials and necessary information. a) You will be provided with these initial materials:  2 plastic resealable bags  3–5 "000" size empty gelatin capsules  One 10 mL graduated cylinder to measure purified or distilled water  5 mL distilled water  1 g calcium chloride  1 Fahrenheit or Celsius thermometer  1 funnel  Clock or stopwatch b) Make sure you use the materials given only for reference purposes in Steps 1 and 2 to help you with ideas in the design phase. Building the device does not occur at this point and any materials you alter or destroy will not be replaced. c) Be sure to organize your materials and make sure that the chemicals are handled safely. d) Do not allow substances to mix until the testing phase begins. e) Be sure you have paper and a pen or pencil to record data before, during, and after the testing phase of the project. This data will be reported in your final report. f) The reaction that will be used is the dissolving

a

explanation:

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).

what is the question here. i think you messed up.

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante