A wooden block has a mass of 20.0 kg and a specific heat of 1700 J/kg °C. Find the change in thermal energy of the block as it warms from 15.0°C to 25.0°C.
A) 165,000 J
B) 240,000 J
C) 280,000 J
D) 340,000 J
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Given,
m=20.0 kg
S=1700 J/kg
T initial =15 degree C
T final =25 degree C
Q?
Q=ms(T final - T intial)
= 20*1700(25 - 15)
=340,000 J .
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