Question

How much energy, in Joules, is needed to raise the temperature from 25.75°C to 33.16°C in a 2.66 kg block of each of the following materials? Nickel has a specific heat of 0.445 J/g·K, titanium has a specific heat of 0.522 J/g·K, and iron has a specific heat of 0.449 J/g·K.

Nickel: _______ J
Titanium: ________ J
Iron: _________J

Answer 1

q = mass metal x specific heat metal x (Tfinal - Tinitial)
For nickel, sp. h. is 0.455 J/g*K
mass = 2.66 kg = 2660 g
q in joules = 2660 g x 0.455 x (33.16 - 25.75) = ?
Post your work if you get stuck.

Answer 2

I got the Nickel answer wrong, I have the wrong amount of sigfigs for Titanium (And i don't know why), and I got the right answer for Iron.

Equation I used for Nickel --> 2660 * 0.455* (33.16 - 25.75) = 8968 J (Which is wrong)

Equation I used for Titanium --> 2660 * 0.522 * (33.16 - 25.75) = 10288 J (Which has the wrong amount of sigfigs)

Answer 3

yas queen