Respuesta :
The amount of heat required for changing the temperature of copper has been 606 J. Thus, option B is correct.
Specific heat has been defined as the amount of heat required to raise the temperature of 1 gram of substance by 1 degree Celsius.
The heat required to raise the temperature has been expressed as:
[tex]\rm Heat=mass\;\times\;specific\;heat\;\times\;Change\;in\;temperature[/tex]
Computation for the heat energy required
The given specific heat of copper has been [tex]\rm 0.385\;J/g^\circ C[/tex]
The mass of copper has been, [tex]\rm 35\;g[/tex]
The initial temperature of copper has been, [tex]\rm 20^\circ C[/tex]
The final temperature of copper has been, [tex]\rm 65^\circ C[/tex]
The change in temperature has been, [tex]\Delta T[/tex]
[tex]\Delta T=\text{Final\;temperature-Initial\;temperature}\\\Delta T =65^\circ \text C-20^\circ \text C\\\Delta T=45^\circ \text C[/tex]
Substituting the values for the heat required as:
[tex]\rm Heat=35\;g\;\times\;0.385\;J/g^\circ C\;\times\;45^\circ C\\Heat=606\;J[/tex]
The amount of heat required for changing the temperature of copper has been 606 J. Thus, option B is correct.
Learn more about specific heat, here:
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