CTL Carlos Almanza
ke'
COL TEACHING LEAD
144%
21. Which of the following is not a transformation from chemical energy to thermal
energy?
a, Coal is burned to boil water
b. An electric stove cooking food
C. Food is digested to regulate body temperature
d. Charcoal is burned in a grill
22. During most energy transformations some energy is transformed and released as
which of the following forms of energy?

a:

by the combination of an unlimited number of elements

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

answer : (a) volume of the gas = 8.67 ×   l

                (b) second virial coefficient b = -1.21226 l/mole

solution :   given,     t = 300k

                                p = 20atm

                                z = 0.86

                                n = 8.2 mmoles = 8.2 × moles

                                r =   0.082 l atm/k/mol

        find,     (a) volume of gas   and (b) second virial coefficient b at 300k.

formula used :            

                          and            

(a)            

                    = \times 0.082\times 300}{20}[/tex]

                    = 8.67 ×   l

(b)      

                    = (0.00867-1) × 8.659

                    = - 8.5839 l/mole

i think tornado but not 100%