Question

The amount of heat needed to raise 2.0 kg of a substance by 80 K is 33 kJ. What is the specific heat of the substance?

A. 210 (J/kg*K)
B. 2,100 (J/kg*K)
C. 1,300 (J/kg*K)
D. 1.3 * 10^6 (J/kg*K)

Answer 1

it is simple, we have to apply this formula:
\[c = \frac{1}{m}\frac{{\Delta Q}}{{\Delta t}} = \frac{1}{2}\frac{{33 \times {{10}^3}}}{{80}}\]

Answer 2

ok! so we get this?

206.25? so our solution should be choice A?

Answer 3

yes! correct!

Answer 4

yay!! thank you!! :D

Answer 5

thanks!! :)