A catalyst accelerates a chemical reaction because the -

A. catalyst decreases the number of collisions in a reaction
B. activation energy of the reaction is lowered in the presence of a catalyst
C. catalyst decreases the concentration of the reactants
D. temperature of the reaction increases due to the catalyst

a is the answer

explanation:

which statement about trans-fatty acids is false?

a. the conversion of cis-fatty acids to trans-fatty acids is inhibited by the presence of antioxidants.

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how to make a simple air condition

the ratio of the conjugate base to the acid required to attain the desired ph.

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