could anyone show me how to do this physics?

0 ⤊

could anyone show me how to do this physics?

a 1.5 kg block of lead is heated from 25 degrees C to 43 degrees C. if this requires 3430 joules of heat energy, what is the specific heat of the block of lead?

2007-02-01 12:11:38 · 2 answers · asked by argentina_mandy20 1 in Science & Mathematics ➔ Physics

2 answers

Specific heat is energy per mass per temp change.

Units joules / kg / degree C.

Just plug in your numbers.

2007-02-01 12:15:46 · answer #1 · answered by Anonymous · 0⤊ 0⤋

From the equation
Q=mcT,where Q=heat energy absorbed or released
m=mass of block of lead
c=specific heat of block of lead
T=temperature changed
So,3430=1.5xcx(43-25)
c=127J kg^-1 C^-1

2007-02-01 20:20:28 · answer #2 · answered by yan 2 · 0⤊ 0⤋