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1. A 250g chunk of metal is heated with 400 joules of energy and the temperature goes from 20 °C to 25°C. What is its specific heat ?

pls help me


Sagot :

Lanuelidn

The specific heat capacity of this chunk of metal is equal to 0.32 J/g°C.

Given the following data:

  • Mass of metal = 250g
  • Quantity of energy = 400 Joules
  • Initial temperature = 20°C
  • Final temperature = 20°C

To determine the specific heat capacity of this chunk of metal:

The formula for quantity of heat.

Mathematically, quantity of heat is given by the formula;

[tex]Q = mc\theta[/tex]

Where:

  • Q represents the quantity of heat.
  • m represents the mass of an object.
  • c represents the specific heat capacity.
  • ∅ represents the change in temperature.

Making c the subject of formula, we have:

[tex]c = \frac{Q}{m\theta}[/tex]

Substituting the given parameters into the formula, we have;

[tex]c = \frac{400}{250 \times (25-20)}\\\\c = \frac{400}{250 \times 5}\\\\c = \frac{400}{1250 }[/tex]

Specific heat, c = 0.32 J/g°C.

Read more on specific heat here: https://brainly.com/question/2834175

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