Question

A piece of copper (c = 0.385 joules over grams times degrees Celsius) undergoing a temperature change from 150°C to 225°C absorbs 3,500 joules of energy. What is the mass of the piece of copper? Express the answer to the nearest whole number. grams

Answer 1

The mass of the piece of copper, to the nearest whole number is 121 grams.

Given the following data:

• Specific heat capacity of copper = 0.385 J/g°C

• Initial temperature = 150.0°C

• Final temperature = 225.0°C

• Quantity of heat = 3,500 Joules

To calculate the mass of the piece of copper, to the nearest whole number:

Mathematically, quantity of heat is given by the formula;

$Q = mc\theta$

Where:

• Q represents the quantity of heat.

• m represents the mass of an object.

• c represents the specific heat capacity.

• $\theta$ represents the change in temperature.

Making "m" the subject of formula, we have:

$m = \frac{Q}{c\theta}$

Substituting the given parameters into the formula, we have;

$m = \frac{3500}{0.385(225-150)}\\\\m = \frac{3500}{0.385 \times 75} \\\\m = \frac{3500}{28.875}$

Mass, m = 121.21 ≈ 121 grams

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Answer 2

Answer:

121

Explanation:

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