HI dissociates to form I2 and H2: 2HI(g) → H2(g) + I2(g) If the concentration of HI changes at a rate of –0.45 M/s, what is the rate of appearance of I2(g)?

The rate of appearance of I2(g)=0.225M/s

Explanation:

We are given that

We have to find the rate of appearance of I2(g).

We know that

Rate of reaction=

Therefore,

Substitute the values

We get

Hence, the rate of appearance of I2(g)=0.225M/s

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.

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