How much heat is absorbed when a block of copper of mass 0.05kg and specific heat capacity 390Jkg-1K-1 is heated from 20oC to 70oC?
-
A.
39 . 98 x 10-1J -
B.
9.75 x 102J -
C.
3.98 x 103J -
D.
9.75 x 103J
Correct Answer: Option B
Explanation
Q = mc(theta)
= 0.05 x 390 x (70 – 20)
= 975J