Question

Using the formula Q = m x ^T x Cp, solve for energy, and round your answer to the correct number of sig figs and show all work:

Answer 1

Answer:

Q = 126.5 kJ

Explanation:

Given that,

Mass, m = 1210 g

Specific heat of water, c =  4.184 J/g°C

Initial temperature, $T_i=20^{\circ} C$

Final temperature, $T_f=45^{\circ} C$

We need to find the heat absorbed by water. The formula that is used to find the heat absorbed is given by :

$Q=mc\Delta T$

Putting all the values in it we get :

$Q=1210\ g\times 4.184\ J/g^{\circ} C\times (45-20)^{\circ} C\\Q=126566\ J\\\\\text{or}\\\\Q=126.5\ kJ$

So, the amount of heat absorbed is 126.5 kJ.