physics

posted by .

A metal container, which has a mass of 9.4 kg contains 14.2 kg of water. A 1.7-kg piece of the same metal, initially at a temperature of 160.0°C, is dropped into the water. The container and the water initially have a temperature of 15.0°C and the final temperature of the entire system is 17.0°C. Calculate the specific heat of the metal.


I got 124.73 but when I put units in it says it's wrong. What are the units? Please help. Units always confuse me.

  • physics -

    ΔQ1 + ΔQ2 = ΔQ3,
    c• m1•ΔT1 +ñ(w) •m2• ΔT1 = c• m3•ΔT2,
    ñ(w) •m2• ΔT1 = c• (m3•ΔT2 - m1•ΔT1),
    c = {ñ(w) •m2• ΔT1}/{m3•ΔT2 - m1•ΔT1} =
    =4180•14.2•2/(143•1.7 – 9.4•2) = 530.5 J.

  • physics -

    Expiain why a piece of wood floats in water?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry. can jus anyone giv me ther opinion.

    Eva has two containers labeled A and B. The diameter of container A is 8 inches and the diameter of container B is 12 inches. If Eva pours the water from container A into container B, which will occur?
  2. Chemistry

    HELP!!! An unknown metal having a mass of 14.00g is dropped into 11.00mL of water at 20.0 degrees Celcius. The starting temperature of the chunk of metal is 100.0C. The final temperature of the water and metal is 32.5C. What is the …
  3. Chemistry

    A 108g piece of unknown metal is heated to 100 degrees C in boiling water. The heated sample of metal is then dropped into 50ml of H20, which is initially at 23.0 degrees C. After a few minutes the temp. of water raises to 37.5 degrees …
  4. physics

    A 0.0320-m3 container is initially evacuated. Then, 5.27 g of water is placed in the container, and, after some time, all of the water evaporates. If the temperature of the water vapor is 352 K, what is its pressure?
  5. physics

    A metal ball of mass 1.8 kg with initial temperature of 46.5 C is dropped into a container of 3 kg of water at 15 C. If the final temperature is 22.6 C, what is the specific heat of the metal?
  6. physics

    A metal ball of mass 1.8 kg with initial temperature of 46.5 C is dropped into a container of 3 kg of water at 15 C. If the final temperature is 22.6 C, what is the specific heat of the metal?
  7. Chemistry-Dr.Bob

    An unknown piece of metal weighing 100. g is heated to 90.0 degrees Celcius. It is dropped into 250 g of water at 20.0 degrees Celcius. When equilibrium is reached, the temperature of both the water and piece of metal is 29.0 degrees …
  8. Physics

    A 1.8 kg piece of a metal initially at a temperature of 180oC is dropped into the water with mass of 14 kg. The water is in a container made of the same metal with mass 3.6 kg. The initial temperature of the water and container is …
  9. Chemistry

    The mass of an empty container is 91 g. The mass of the container filled with water is 111 g. What is the volume of the container?
  10. physics

    Specific heat capacity of a certain metal is found by heating the metal and then placing it into water which is in a container made of the same material. The metal has mass of 100g and is heated to 100 degrees celsius. The container …

More Similar Questions