A 15.00 g ironblock is dropped into a beaker containing 100.0 g of water at 20.00 degrees C. At equilibrium, thetemperature of the water is 22.00 degrees C. What was the initial temperature of theblock?
c(water) = 4.180 J/g/ degrees C and c(Fe) = 0.449 J/g/ degrees C.

Q.4. a- A 1-kg ironblock is to be accelerated through a process that supplies it with 1 KJ of energy. Assuming all this energy appears as kinetic, what is thefinal velocity of theblock?
b- If the heat capacity of iron is 25.10 J/(mol K) andthe molecular weight of iron is 55.85, how large a temperature rise would result f

ChemLab program "specific heat" lab.
Obtain 100 g shots of each: iron; copper & aluminum. Insert 150 ml of water at room temperatureand heat to a
finaltemperature of 100 degrees of celsius.
Place in calorimeter and add 100 ml of water 20 degrees celsius.
Measure specific heat for each metal and atomic weight.
100

A block of iron is suspended from one end of an equal-arm balance by a thin wire. To balance the scales, 2.35 kg are needed on the scale pan at the other end.
A) What is the volume of theblock?
B) Next, a beaker of water is placed so that theironblock, suspended as in part (A), is submerged in the beaker but not touch

An aluminum and an iron bar are of unequal length. An iron bar whose length is 60.00 meters is at 0 degrees Celsius. An aluminum bar whose length is 60.05 meters is at +10 degrees Celsius. Find a temperature at which they are the same length. The coefficient of expansion of iron is 11 E -6 per C degree.
The coefficient of ex

Could you please take a look at this? I'm having trouble with #2 and #3. Thank you!
Observations:
#1 - Initial temperature of Iron shot (Fe) metal: 100°C
Finaltemperature of Iron shot (Fe) metal: 28°C
Initial temperature of water from calorimeter: 20°C
Final water temperature from calorimeter: 28°C
#2

1. How much heat is required to raise thetemperature by 10 degrees Celsius of one kg of water andiron?
2. Two identical objects (the same mass, material) at temperatures T1 = 20 degrees and T2 = 30 degrees are in contact. What is thefinaltemperature of these objects after they reach thermal equilibrium?

Urea, (NH2)2 (CO), is used in the manufacture of resins and glues. When 5.00 g of urea is dissolved in 250.0 mL of water (d=1.00 g/mL) at 30.0°C, 27.6 kJ of heat is absorbed. What is thefinaltemperature of the solution in kJ? The density of water is 4.18 J/g·°C. What is thefinaltemperature in °F? F = °C x 1.8 + 32 (Roun

1. Explain what you mean by unusual expansion of liquid (water)
2. Explain how a bimetalic strip is used in an electric ironand explain how it helps to control thetemperature of iron.
3. Thermal expansion can be a problem, small gaps are left in railway lines and in bridges, explain in detail why the gaps are needed.