chemistry

posted by .

Calculate the enthalpy change when 50. g of ice at -30.0 °C is heated to completely melt to liquid water at 0.0°C. (The heat of fusion for water is 333 J/g.)

  • chemistry -

    q1 = heat required to raise T of ice from -30 to O C.
    q1 = mass of ice x specific heat ice x (Tf - Ti) where Tf is final T (O) and Ti is initial T (-30).
    q2 = heat required to melt the ice at zero; i.e., change from solid phase to liquid phase.
    q2 = mass of ice x heat fusion.
    total q = q1 + q2.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    Calculate the enthalpy change when 100. g of ice at 0.0 °C is heated to liquid water at 50.0°C. (The heat of fusion for water is 333 J/g.) 1)54.2 kJ 2)33.3 kJ 3)54,220 kJ 4)20.9 kJ
  2. chemistry

    How long would it take for 1.50mol of water at 100.0 degrees to be converted completely into steam if heat were added at a constant rate of 23.0J/s ?
  3. chemistry

    Which of the following constants are needed to calculate the change in enthalpy (H) for heating a sample of liquid water at 10C to steam at 150C. I) the heat capacity of water II) the enthalpy of fusion of water III) the heat capacity …
  4. Chemistry HEAT OF FUSION

    What amount of energy is required to melt a 26.9 g piece of ice at 0oC?
  5. Chemistry

    22.) The molar heats of fusion and vaporization for water are 6.02 kJ/mol and 40.6 kJ/mol, respectively, and the specific heat capacity of liquid water is 4.18 J/gC. (1) What quantity of heat is required to melt 25.0 g of ice at 0C?
  6. Chemistry

    Calculate the enthalpy change when 45 g of ice at -40.0 oC is heated to completely melt to liquid water at 0.0oC. (The heat of fusion for water is 333 J/g.)
  7. chemistry

    when one gram of water solidifies to ice 333.33 j of heat is evolved. calculate enthalpy of fusion of ice?
  8. had

    A 0.106 kg ice cube is taken out of a freezer with temperature -16°C. It is then added to a glass of water with mass 0.25 kg. The water initially has a temperature of 24.2 °C. Assume no heat is added or lost to the surroundings. …
  9. Chemistry

    A 2.75 kg block of ice is heated until it completely melts. It is then heated again until it completely changes to water vapor. Is more energy required to melt the ice or to vaporize the liquid water.
  10. chemistry

    1. Given that 50 grams of ice is heated at -20.0 °C to steam at 135.0 °C. i. Show the graph of the changes from ice to steam ii. Calculate the energy needed to change the ice to steam Please use these values: Heat of fusion = 334.16 …

More Similar Questions