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What mass of potassium would need 2350 J of energy in order to raise its temperature from 44.3°C to 57.8°C? (cpotassium = 0.753 J/g°C)

Respuesta :

sciencegeekgirl2017

Answer:

Explanation:

q = mCΔT

m =CΔT/q

ΔT = 57.8°C - 44.3°C = 13.5°C

m = (0.753*13.5)/2350

m = 0.00433 g

Eduard22sly

The mass of potassium that will need 2350 J of energy in order to raise its temperature from 44.3°C to 57.8°C is 231.17 g

Data obtained from the question

  • Heat (Q) = 2350 J
  • Initial temperature (T₁) = 44.3 °C
  • Final temperature of water (T₂) = 57.8 °C
  • Change in temperature (ΔT) = 57.8 – 44.3 = 13.5 °C
  • Specific heat capacity (C) = 0.753 J/gºC
  • Mass (M) =?

Q = MCΔT

2350 = M × 0.753 × 13.5

2350 = M × 10.1655

Divide both side by 10.1655

M = 2350 / 10.1655

M = 231.17 g

Learn more about heat transfer:

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