For the gas phase isomerization of cis-cyanostyrene, cis-c6h5ch=chc --> ntrans-c6h5ch=chcn the rate constant has been determined at several temperatures. when ln k in s-1 is plotted against the reciprocal of the kelvin temperature, the resulting linear plot has a slope of -2.32×104 k and a y-intercept of 26.7. the activation energy for the gas phase isomerization of cis-cyanostyrene is kj/mol.

The activation energy for the gas phase isomerization of cis-cyanostyrene is 193 kJ/mol.

Explanation:

The relation between the rate constant (k) and the absolute temperature (T) is given by the Arrhenius equation:

where,

A is a preexponential factor

Ea is the activation energy

R is the ideal gas constant

T is the absolute temperature

This expression can be re-written like:

The plot of ln k against 1/T gives a linear plot where ln A is the intercept and -Ea/R is the slope.

Since we know the slope is -2.32 × 10⁴ K, we can find Ea:

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)