maliyahclays
Answered

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45 points! How much heat in Joules would it take to heat up a block of aluminum that weighs 1000.0 grams from a temperature of 70 degrees C, to it's melting point at 192.4C? specific heat for aluminum is .89 J/g-C. do not round answer- pls help

Sagot :

dsdrajlin

Answer:

1.1 × 10⁵ J

Explanation:

Step 1: Given data

  • Mass of the aluminum block (m): 1000.0 g
  • Initial temperature: 70 °C
  • Final temperature: 192.4 °C
  • Specific heat for aluminum (c): 0.89 J/g.°C

Step 2: Calculate the change in the temperature

ΔT = 192.4 °C - 70 °C = 122 °C

Step 3: Calculate the heat required (Q)

We will use the following expression.

Q = c × m × ΔT

Q = 0.89 J/g.°C × 1000.0 g × 122 °C

Q = 1.1 × 10⁵ J

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