Thermochem Review

Specific Heat (C)

Amount of heat needed to raise the temperature of 1 g of a substance by 1 degree Celsius.

$$q=mC\Delta T$$

Formula for calculating heat (q)

How to convert Celsius to Kelvin?

$K = °C + 273$.

ΔT

$\Delta T=T_{f}-T_{i}$ Temperature change - where T_f is the final temperature and T_i is the initial temperature.

The m in $q=mC\Delta T$

mass

The C in $q=mC\Delta T$

specific heat

System

The part of the universe we are studying.

Surroundings

Everything else outside the system.

Endothermic

A process where energy flows into the system, increasing its energy amount.

Exothermic

A process where energy flows out of the system, decreasing its energy amount.

Heat (q)

Energy used to cause the temperature of an object to rise, flowing from hotter objects to cooler ones.

Energy

The ability to do work or transfer heat.

Joules (J)

A unit of measurement for energy.