Q = mcΔT

Front

What does the equation Q = mcΔT represent?

Back

It represents the relationship between heat (Q), mass (m), specific heat (c), and change in temperature (ΔT) of a substance.

Front

What is specific heat?

Back

Specific heat is the amount of heat required to raise the temperature of 1 gram of a substance by 1°C.

Front

If a substance has low specific heat, how does it respond to temperature changes?

Back

It warms up quickly and cools off quickly.

Front

What is the formula to calculate heat energy?

Back

q = mcΔT

Front

In the equation q = mcΔT, what does 'm' represent?

Back

'm' represents the mass of the substance.

Front

In the equation q = mcΔT, what does 'ΔT' represent?

Back

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

Front

What are the units of specific heat (c)?

Back

The units of specific heat are J/g°C or cal/g°C.

Front

How much heat is needed to raise the temperature of 50 g of iron by 15°C if the specific heat of iron is 0.444 J/g°C?

Back

333 J (calculated using q = mcΔT).

Front

What is the specific heat of water?

Back

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

Front

What happens to the temperature of a substance when it absorbs heat?

Back

The temperature of the substance increases.