Calorimetry review

Front

What is calorimetry?

Back

Calorimetry is the science of measuring the heat of chemical reactions or physical changes, as well as heat capacity.

Front

What does 'c' represent in calorimetry problems?

Back

'c' represents the specific heat capacity of a substance, measured in J/g°C.

Front

What is the formula for calculating heat (q) in calorimetry?

Back

q = m * c * ΔT, where m is mass, c is specific heat capacity, and ΔT is the change in temperature.

Front

What does 'ΔT' stand for?

Back

'ΔT' stands for the change in temperature, calculated as final temperature - initial temperature.

Front

How do you calculate ΔT?

Back

ΔT = T_final - T_initial.

Front

What is the unit of specific heat capacity?

Back

The unit of specific heat capacity is J/g°C.

Front

If 10.0 g of water is heated from 20°C to 50°C, what is ΔT?

Back

ΔT = 50°C - 20°C = 30°C.

Front

What is the specific heat capacity of water?

Back

The specific heat capacity of water is approximately 4.18 J/g°C.

Front

How do you find the heat absorbed or released by a substance?

Back

Use the formula q = m * c * ΔT.

Front

What is the significance of a positive q value?

Back

A positive q value indicates that heat is absorbed by the system.