# The specific heat of nickel is 0.44 J/g°C. How much energy needed to change the temperature of 95.4g of nickel from 32°C to 22°C. Is the energy absorbed or released?

May 17, 2018

$419.76$ $J$, Released.

#### Explanation:

First of all, We will find whether the energy is absorbed or released.

The easiest way to find that is to observe the change in temperature.

We can see that, $\text{Final Temperature " lt " Initial Temperature}$.

So, The Heat Energy is released.

Now, Let's Calculate the Heat.

We know, $\text{Heat Released or Absorbed by the Body " = "Mass of the Body" xx "Specific Heat of the Material" xx "Change in Temperature}$.

Mathematically, $Q = m s \Delta T$

Now, From the Question,

$\textcolor{w h i t e}{\times x} Q = 95.4 \cdot 0.44 \cdot \left(22 - 32\right)$ [As, $\Delta T = {T}_{\text{final" - T_"initial}}$]

$\Rightarrow Q = - \left(95.4 \cdot 0.44 \cdot 10\right)$

$\Rightarrow Q = - 419.76$

So, The Heat Energy Released is $419.76$ $J$.