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The specific heat(c) of copper is 0.39 J/g °C. What is the temperature
change(At) when 100 Joules of heat(Q) is added to 20 grams?

Respuesta :

Chelboy

Answer:12.8°c

Explanation:

specific heat capacity of copper(c)=0.39J*g°c

Mass(m)=20grams

Quantity of heat(Q)=100joules

Temperature rise(@)=?

@=Q/(mxc)

@=100/(20x0.39)

@=100/7.8

@=12.8°c

samueladesida43

The temperature change (∆T) of the copper when 100 Joules of heat is added to 20 grams is 12.82°C

HOW TO CALCULATE TEMPERATURE CHANGE:

  • The temperature change (∆T) of copper metal can be calculated using the following formula:

  • Q = m × c × ∆T

Where;

  1. Q = quantity of heat absorbed or released (J)
  2. m = mass of copper (g)
  3. c = specific heat capacity (J/g°c)
  4. ∆T = temperature change (°C)

  • According to this question, 100 Joules of heat is added to 20 grams of copper. The temperature change is calculated as follows:

100 = 20 × 0.39 × ∆T

100 = 7.8∆T

∆T = 100 ÷ 7.8

∆T = 12.82°C

  • Therefore, the temperature change (∆T) of the copper when 100 Joules of heat is added to 20 grams is 12.82°C

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