Chemistry

Question

How many grams of water will absorb a total of 2400 joules of energy when the temperature changes from 10.0°C to 30.0°C?​

1 Answer

  • Answer:

    28.7 grams of water

    Explanation:

    Calorimetry problem:

    Q = C . m . ΔT

    2400 J = 4.18 J/g°C . m . (30°C - 10°C)

    2400 J = 4.18 J/g°C . m . 20°C

    2400J = 83.6 J/g . m

    2400J / 83.6 g/J = m

    28.7 g = m

NEWS TODAY