What most likely accounts for the difference between curve A and curve B on the energy diagram?
A. The reaction described by curve B is occurring with a catalyst.
B. The reaction described by curve B is at a different temperature.
C. The reaction described by curve B is under greater pressure.
C
D. The reaction described by curve B has higher reactant
concentrations.

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~courtney

1.solid

2.carbon dioxide

3.helium

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml

b.

the accuracy of the data.