# Chemistry honors

A 500 g piece of iron changes 7°C when heat is added. How much heat energy produced this change in temperature? C of iron is 0.450 J/g°C

1. 👍
2. 👎
3. 👁
1. q (inJoules) = mass Fe x specific heat Fe x delta T
Substitute and solve for q.

1. 👍
2. 👎

## Similar Questions

1. ### Science

1. How much heat energy is lost by 3 kg of water when it cools from 80 degrees C to 10 degrees C? 2. A 300 g piece of aluminum is heated from 30 degrees C to 150 degrees C. What amount of heat energy is absorbed? 3. Determine the

2. ### Chemistry

How many joules are required to raise the temperature of 450mL of water from 30 °C to 100 °C? The specific heat of copper metal is 0.385 J/ g- K. How many KJ of heat needed to raise the temperature of 1.1 kg block of copper from

3. ### 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? compute and add the following heats: heat to heat ice from -20C to 0C heat to melt ice at 0C Heat to heat water

4. ### chemistry

The specific heat capacity of iron is 0.45 j/g oC. how many joules of energy are needed to warm 1.3100000000000001 g of iron from 20.00oC to 29.00 oC ?

1. ### Chemistry - Heat of Fusion of Ice

Conclusion question(s) from a lab we did to find the heat of fusion of ice: Does the value obtained for the molar heat of fusion depend on the volume of water used? Does it depend on the mass of ice melted? Does it depend on the

2. ### Science

"Most of the solar radiation is absorbed by the atmosphere and much of what reaches the earth's surface is radiated back into the atmosphere to become heat energy." What can you conclude about heat energy? Most of the sun's energy

3. ### Chemistry

The overall reaction in a commercial heat pack can be represented as shown below. 4 Fe(s) + 3 O2(g) 2 Fe2O3(s) ΔH = -1652 kJ How much heat is released when 4.00 mol iron is reacted with excess O2? How much heat is released when

4. ### thermal energy

A hot 0.25-kg piece of iron is placed in a calorimeter containing room temperature water. How much heat is lost by the iron as it cools from 125 degree C to 75 degree C? I must have the given/work and answer also how much heat is

1. ### Chemistry

The specfic heat of iron is 0.11cal/g C. The heat of fusion of iron, the heat required to convert iron from a solid to liquid at its melting point, is 63.7cal/g. Iron melts at 1530 C. How much heat must be added to 2g of iron at

2. ### chemistry

The specific heat of iron is approximately 0.45 J/g °C. How much heat energy is required to raise a 40 g sample of aluminum from 40 °C to 60 °C?

3. ### Science

A cold cast iron skillet is placed onto a stove top. When the stove is turned on, the skillet becomes very hot. Why does the skillet become hot? A) The skillet is losing energy (heat) to the stove. B) The stove is gaining energy

4. ### physics

calculate the amount of heat energy required to melt a 1kg iron ingot initially at 20 ¡ãC? (heat of fusion for Fe is 33.0 J/g