Which statement defines specific heat capacity for a given sample? the temperature of a given sample the temperature that a given sample can withstand the quantity of heat that is required to raise the sample’s temperature by 1°C (Kelvin) the quantity of heat that is required to raise 1 g of the sample by 1°C (Kelvin) at a constant pressure

  the quantity of heat that is required to raise 1 g of the sample by 1°C (Kelvin) at a constant pressure

Explanation:

Specific heat capacity is the amount of energy in the form of heat that must be added to a unit mass of the sample to raise its temperature by 1 unit. If the sample is a gas, the pressure or the volume may be maintained at a constant value. The value for constant pressure may be different from the value for constant volume.

Here, the author of the question elected to describe the constant pressure specific heat capacity:

  the quantity of heat that is required to raise 1 g of the sample by 1°C (Kelvin) at a constant pressure . . . . (last choice)

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