Question

What is the temperature change of the lithium chloride pack?

ΔT = Tf - Ti

ΔT = °C - °C = °C

What is the energy change of the sodium chloride pack?

ΔE = kJ/mol

-37kj/mol Released

Starting temp 21 degrees Celsius

Answer 1

To provide the temperature change (\( \Delta T \)) of the lithium chloride pack and the energy change (\( \Delta E \)) of the sodium chloride pack, we first need to clarify a few details based on your question.

### Temperature Change of Lithium Chloride Pack

You provided the formula for calculating temperature change:

\[
\Delta T = T_f - T_i
\]

Where:
- \( T_f \) = final temperature (°C)
- \( T_i \) = initial temperature (°C)

Since you did not provide numerical values for \( T_f \) and \( T_i \), I cannot compute the temperature change specifically without those values. If you provide the final temperature (\( T_f \)), I can help you calculate \( \Delta T \).

### Energy Change of Sodium Chloride Pack

You mention that the energy change (\( \Delta E \)) of the sodium chloride pack is \(-37 \, \text{kJ/mol}\), which indicates that energy is released during the process (as it is negative).

To summarize:
- If you have specific initial and final temperatures for the lithium chloride pack, please provide those to compute \( \Delta T \).
- The energy change for the sodium chloride pack is already given as \(-37 \, \text{kJ/mol}\).

If you have any more data or need further assistance, let me know!