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If 1 kg of wood absorbs 200 kJ of heat energy, and its temperature changes from 25°C to 150°C.  In this case, what will be the specific heat of  wood?
  • a)
    2000 Jkg-1 °C-1
  • b)
    1600 Jkg-1 °C-1
  • c)
    1000 Jkg-1 °C-1
  • d)
    4000 Jkg-1 °C-1
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
If 1 kg of wood absorbs 200 kJ of heat energy, and its temperature cha...
Given that,
Mass of wood, m = 1 kg
Heat absorbed by wood for increasing its temperature by  25°C to 150°C, ΔQ = 200 kJ = 200000 J 
Change in temperature, ΔT = 150 - 25 = 125 °C 
Hence, from the above explanation, we can see that specific heat of any material can be calculated as 
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