A 33.05 g sample of a substance is initially at 28.5 °C. After absorbing 2589 J of heat, the temperature of the substance is 107.9 'C.
What is the specific heat (c) of the substance?

Respuesta :

Answer:

[tex]0.985\ \text{J/g}^{\circ}\text{C}[/tex]

Explanation:

m = Mass of sample = 33.05 g

[tex]\Delta T[/tex] = Change in temperature = [tex]107.9-28.5=79.5^{\circ}\text{C}[/tex]

Q = Heat absorbed = 2589 J

c = Specific heat of substance

Heat is given by

[tex]Q=mc\Delta T\\\Rightarrow c=\dfrac{Q}{m\Delta T}\\\Rightarrow c=\dfrac{2589}{33.05\times 79.5}\\\Rightarrow c=0.985\ \text{J/g}^{\circ}\text{C}[/tex]

The specific heat of the substance is [tex]0.985\ \text{J/g}^{\circ}\text{C}[/tex].