Question

ok, so how many joules would it take to raise 1 gram of al by 2 degrees?
4.186 joules
1.800 joules
.900 joules
rewatch

Explanation:

Step1: Recall the specific heat formula

The formula for heat energy \( Q \) is \( Q = mc\Delta T \), where \( m \) is mass, \( c \) is specific heat capacity, and \( \Delta T \) is the change in temperature.

Step2: Identify values for Al

For aluminum (Al), the specific heat capacity \( c = 0.900 \, \text{J/g°C} \), mass \( m = 1 \, \text{g} \), and \( \Delta T = 2 \, \text{°C} \).

Step3: Substitute into the formula

\( Q = 1 \, \text{g} \times 0.900 \, \text{J/g°C} \times 2 \, \text{°C} \)
\( Q = 1.800 \, \text{J} \)

Answer:

1.800 Joules (corresponding to the option "1.800 Joules")