Specific heat capacity

Front

What is the definition of specific heat capacity?

Back

Specific heat capacity is the amount of heat energy required to raise the temperature of 1 gram of a substance by 1 degree Celsius.

Front

What is the formula to calculate the heat energy absorbed or released by a substance?

Back

The formula is Q = mcΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.

Front

What is the specific heat capacity of water?

Back

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

Front

How does the specific heat capacity of a substance affect its temperature change?

Back

A substance with a higher specific heat capacity requires more heat energy to change its temperature compared to a substance with a lower specific heat capacity.

Front

What is kinetic energy in the context of thermal energy?

Back

Kinetic energy refers to the energy of movement of particles in a substance, which contributes to its temperature.

Front

If 200g of water is heated from 20°C to 50°C, how much energy is required?

Back

The energy required is 25080 J.

Front

How do you calculate the specific heat of a substance if you know the mass, energy absorbed, and temperature change?

Back

Use the formula c = Q / (mΔT), where c is specific heat, Q is heat energy, m is mass, and ΔT is the change in temperature.

Front

What is the specific heat of wood?

Back

The specific heat of wood is 1.760 J/g°C.

Front

Which material requires more heat energy to raise its temperature: water or wood?

Back

Water requires more heat energy to raise its temperature due to its higher specific heat capacity.

Front

What does the letter 'C' represent in thermodynamics?

Back

The letter 'C' represents specific heat capacity.