The activation energy for the reaction in this lab is determined by investigating the effects of temperature on reaction rate. Assuming a negative activation energy, Ea, what effect will increasing the temperature have on the rate constant, k? a. Increasing temperature will decrease the rate constant, k. b. Increasing temperature will not have an effect on the rate constant, k. c. Increasing temperature will increase the rate constant, k.

a. Increasing the temperature would decrease the rate constant, k.

Explanation:

The negative activation energy would result when there is an increase in temperature. The effect of this temperature increment on the rate of reaction is a decrease.

Reactions with a negative activation energy proceed in an environment with no limiting factors. The chances that the molecules can collide with each other is also considerably reduced because they are no longer in the space where a collision can occur. The resultant effect on the rate constant is a decrease.

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).