How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22°C to 55°C, if the specific heat of aluminum is 0.90 J/g°C?

Question

How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22°C to 55°C, if the specific heat of aluminum is 0.90 J/g°C?

Answer 1

Hey Gabriel,

So this problem is asking about specific heat and the heat needed to change temperature given a mass and specific heat. This means we must use the q=mcΔT formula, where q= heat in Joules, m is mass (g), c is specific heat in (J/g°C) and ΔT is the change in temperature in Celsius.

First, let's start with finding ΔT. ΔT is always defined as T_final - T_initial.

Therefore, 55°C- 22°C= 33°C.

Now we must plug in all of our variables

q=mcΔT

q= (10.0g)(0.90J/g°C)(33°C)

q= 297 Joules

Hope this helped!