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The symbol c stands for specific heat, and depends on the material and phase. The specific heat is the amount of heat necessary to change the temperature of 1.00 kg of mass by 1.00 ºC. The specific heat c is a property of the substance; its SI unit is J/ (kg ⋅ K) or J/ (kg ⋅ °C ).
The weight of an object is the force of gravity on the object and may be defined as the mass times the acceleration of gravity, w = mg. Since the weight is a force , its SI unit is the newton. Density is mass/volume.
The quantitative relationship between heat transfer and temperature change contains all three factors: Q = mcΔT, where Q is the symbol for heat transfer, m is the mass of the substance, and ΔT is the change in temperature. The symbol c stands for specific heat and depends on the material and phase.
Q = mcΔT, where Q is the symbol for heat transfer (“quantity of heat”), m is the mass of the substance, and ΔT is the change in temperature. The symbol c stands for the specific heat (also called “ specific heat capacity ”) and depends on the material and phase.
When temperature is constant, pressure is inversely proportional to volume. When pressure is constant, volume is directly proportional to temperature. This last point describes thermal expansion —the change in size or volume of a given mass with temperature.
Defintion: Weight. The gravitational force on a mass is its weight. We can write this in vector form, where \(\vec{w}\) is weight and m is mass, as \[\vec{w} = m \vec{g} \ldotp \label{5.8}\] In scalar form, we can write \[w = mg \ldotp \label{5.9}\]
Calculating thermal energy changes. The change in thermal energy due to temperature changes is calculated using this equation: change in thermal energy = mass × specific heat capacity ×...
