q=mc*deltaT

Front

What does the formula q=mcΔT represent?

Back

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

Front

In the equation q=mcΔT, what does 'c' stand for?

Back

'c' stands for specific heat capacity, which is the amount of heat required to raise the temperature of 1 gram of a substance by 1°C.

Front

What is the unit of measurement for specific heat capacity (c)?

Back

The unit of measurement for specific heat capacity is J/g°C or cal/g°C.

Front

If 5000 J of energy is added to a substance with a mass of 10 g and a specific heat of 0.875 J/g°C, what is the change in temperature?

Back

The change in temperature (ΔT) can be calculated using the formula ΔT = q/(mc). In this case, ΔT = 5000 J / (10 g * 0.875 J/g°C) = 570.86°C.

Front

Which substance requires more energy to raise its temperature by 1°C: water or wood?

Back

Water requires more energy to raise its temperature by 1°C because it has a higher specific heat capacity (4184 J/Kg°C) compared to wood (1760 J/Kg°C).

Front

What is the specific heat of Substance X if it is 0.5 J/g°C?

Back

The specific heat of Substance X is 0.5 J/g°C.

Front

What is the specific heat of Substance Z if it is 3.6 J/g°C?

Back

The specific heat of Substance Z is 3.6 J/g°C.

Front

If two substances with different specific heats are mixed, how do you estimate the final temperature?

Back

To estimate the final temperature, use the principle of conservation of energy, where the heat lost by the hotter substance equals the heat gained by the cooler substance.

Front

What happens to the temperature of a substance when heat is added?

Back

The temperature of the substance increases as heat is added, depending on its mass and specific heat capacity.

Front

What is the formula to calculate the heat energy (q) absorbed or released?

Back

The formula to calculate heat energy is q = mcΔT.