A constant volume calorimeter (bomb calorimeter) was calibrated by performing in it a reaction in which 5.23 kJ of heat energy was released, causing the calorimeter to rise by 7.33 °C. What is the heat capacity C of the calorimeter?

Respuesta :

Explanation:

Relation between heat energy and specific heat is as follows.

            [tex]q_{bomb} = c \times \Delta t[/tex]

or,            c = [tex]\frac{q_{bomb}}{\Delta t}[/tex]

where,     c = specific heat

           [tex]q_{bomb}[/tex] = heat energy

           [tex]\Delta t[/tex] = change in temperature

Putting the given values into the above formula we will calculate the specific heat as follows.

                c = [tex]\frac{q_{bomb}}{\Delta t}[/tex]

                   = [tex]\frac{5.23 kJ}{7.33^{o}C}[/tex]

                   = 0.713 [tex]kJ^{o}C[/tex]

Thus, we can conclude that heat capacity C of the calorimeter is 0.713 [tex]kJ^{o}C[/tex].

The heat capacity C of the calorimeter is [tex]713.51J/^0C[/tex]

The formula for calculating the heat capacity is expressed as;

[tex]Q=mc \triangle t[/tex]

Q is the heat energy released

mc is the heat capacity

[tex]\triangle t[/tex] is the change in temperature

Given the following parameters

Q = 5230 Joules

[tex]\triangle t[/tex] = 7.33°C

Substitute the given parameters into the formula

[tex]Q=mc \triangle t\\mc=\frac{Q}{\triangle t} \\mc=\frac{5230}{7.33}\\mc= 713.51J/^0C[/tex]

Hence the heat capacity C of the calorimeter is [tex]713.51J/^0C[/tex]

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