Specific Heat Problem in Celsius

In summary, specific heat is the amount of heat needed to raise the temperature of one gram of a substance by one degree Celsius. It is typically measured using a calorimeter and helps us understand how different materials respond to temperature changes. The specific heat of a substance is directly proportional to the amount of heat required for temperature change, and it varies among different substances due to differences in molecular structure and intermolecular forces.
  • #1
Ki-nana18
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Homework Statement



The specific heat of substance X is 200 J/g*C, how much heat is required to change the temperature of 2.0 kilograms of substance X from 40 degrees Celsius to 55 degrees Celsius?

Homework Equations



Q=(m)(c)(change T)

The Attempt at a Solution


55 C-40 C= 15 C
2.0kg(1000 g/1 kg)= 2000 g

(2000 g)(200 J/g*C)(15 C)= 6000000 J

I'm am not sure if this is right at all. :uhh: Is it right?
 
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  • #2
Looks correct to me.
 
  • #3
Watch significant numbers.

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methods
 

1. What is specific heat?

Specific heat is the amount of heat required to raise the temperature of one gram of a substance by one degree Celsius.

2. How is specific heat measured?

Specific heat is typically measured using a calorimeter, which is an insulated container that holds a known amount of a substance and measures the change in temperature when heat is added or removed.

3. Why is specific heat important?

Specific heat is important because it helps us understand how different materials respond to changes in temperature. It is also a crucial factor in determining the amount of heat needed to achieve a desired temperature change in a substance.

4. How is specific heat related to temperature change?

The specific heat of a substance is directly proportional to the amount of heat required to change its temperature. In other words, substances with higher specific heat require more heat to raise their temperature compared to substances with lower specific heat.

5. How does specific heat vary among different substances?

Specific heat varies among different substances due to variations in molecular structure and intermolecular forces. For example, substances with strong intermolecular forces tend to have higher specific heat compared to substances with weak intermolecular forces.

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