Which statement is true for a heating curve?
a.) it shows how the pressure of a substance changes when heated.
b.) it shows how the temperature of a substance changes when heated.
c.) it shows how the volume of a substance changes when heated.
d.) it shows how the mass of a substance changes when heated.

The correct option is B.

A heating curve refers to a graphical representation of how the temperature of a compound change when heat is added to it. The graph shows the phase transition that a substance undergoes as heat is added to it. The plateaus on the curve represent the critical temperature points where phase changes actually occur. The curve has two axes, the vertical and the horizontal axes. The temperature of the substance is typically plotted on the vertical axis while the time during which heat is applied is plotted on the horizontal axis.

did anyone actually do this? like if anyone has submitted this i rly need .

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