A metal with a specific heat of 0.900 J/g oC requires 610 J of heat to raise the temperature (the change in temperature) by 25 oC. What is the mass of the metal?

Answer 1

The equation you want to use is q = mC∆T

q = heat = 610 J

m = mass = ?

C = specific heat = 0.900 J/gº

∆T = change in temperature = 25º

Solving for m (mass), we have...

m = q / C∆T = 610 J / (0.900 J/gº)(25º)

m = 27.1 g

Answer 2

The equation you would use here is q=mct where q is heat, m is mass, c is specific heat, and t is the temperature change. Solving for the m variable the equation becomes m=q/ct. Plugging in the numbers from the question gives m=(610)/(.900)*(25)= 27.1 kg