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MMLU-Pro / 9071 / A 1.4447-gm sample of coal is burned in an oxygen-bomb calorimeter. The rise in…

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question

A 1.4447-gm sample of coal is burned in an oxygen-bomb calorimeter. The rise in temperature of the bomb (mass m_c) and the water surrounding it (mass m_w) is 7.795 F0 = 4.331C0. The water equivalent of the calo-rimeter [= m_w + m_c(c_c/c_w)] is 2511 gm. What is the heating value of the coal sample?

category

physics

options

  1. 7,000 [Btu/Ib]
  2. 15,000 [Btu/Ib]
  3. 7525 (cal/gm)
  4. 13,520 [Btu/Ib]
  5. 10,875 cal
  6. 8,200 cal/gm
  7. 4.331 C0
  8. 9,250 [Btu/Ib]
  9. 6,500 cal
  10. 12,000 cal/gm

src

stemez-Physics

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