10th geade Chem

posted by .

Does anyone know how much heat do I need to convert 95g. of ice at -25 C. to water at 30 C. the heat capacity of H2O(s) is 2.1 J/g*C.

  • 10th geade Chem -

    q1 = heat to move ice at -25C to zero C.
    q1 = mass ice x specific heat ice x (25)

    q2 = heat to melt ice at zero C to liquid water at zero C.
    q2 = mass ice x heat fusion.

    q3 = heat to move liquid water at zero C to 30C.
    q3 = mass water x specific heat water x (Tfinal-Tinitial)
    Total heat = q1 + q2 + q3.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    How much heat is added to a 10.0 g of ice at -20.0 degrees Celsius to convert it to steam at 120.0 degrees Celsius?
  2. chem

    The heat of combustion of bituminous coal is 2.50 × 104 J/g. What quantity of the coal is required to produce the energy to convert 137.7 pounds of ice at 0.00°C to steam at 100.°C?
  3. Chem

    How much heat do I need to convert 200g of liquid water at -25C to water at 30C?
  4. Chemistry

    DrBob222,HELP! Two 20.0-g ice cubes at –10.0 °C are placed into 275 g of water at 25.0 °C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts. heat …
  5. CHEM HELP ASAP!!

    Two 20.0-g ice cubes at –10.0 °C are placed into 275 g of water at 25.0 °C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts. heat capacity h2o …
  6. Phase Changes

    The heat of fusion of water is 335 J/g, the heat of vaporization of water is 2.26 kJ/g, the specifc heat of ice is 2.05 J/deg/g, the specific heat of steam is 2.08 J/deg/g and the specific heat of liquid water is 4.184 J/deg/g. How …
  7. chemistry

    Two 20.0 g ice cubes at -16.0 C are placed into 285 g of water at 25.0 C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts. heat capacity of H2o(s)-->37.7 …
  8. Chemistry

    Two 20.0-g ice cubes at –20.0 °C are placed into 295 g of water at 25.0 °C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts. Heat capacity of H2O(s)=37.7J …
  9. 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 …
  10. Science

    How much heat is released when 75.0 g of steam at 100.0 c is cooled to ice at -15.0c?

More Similar Questions