As the specific heat varies depending on the nature if material like water has different specific material than copper. So, the value of specific heat depends on the nature of
the material
. Similarly, it depends on the amount of work done externally due to expansion of the substance caused by raising the temperature.
Is specific heat dependent on state?
Specific heat capacity is
constant
for a particular substance at a particular physical state and remains invariant until transition state (melting, evaporating, etc) is achieved. … Specific heat capacity of a substance is the heat required to raise the temperature of 1 gram of a substance by 1 K 1 K 1K.
Does specific heat depend on phase?
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 1.00oC.
Why does specific heat not change?
The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius. … The relationship does not apply if a phase change is encountered, because
the heat added or removed during a phase change does not change the
temperature.
Does specific heat depend on mass?
Unlike the total heat capacity, the specific heat capacity is independent of mass or volume. It describes how much heat must be added to a unit of mass of a given substance to raise its temperature by one degree Celsius. … Values of specific heat are dependent on
the properties and phase of a given substance
.
What does specific heat depend on?
This quantity is known as the specific heat capacity (or simply, the specific heat), which is the heat capacity per unit mass of a material. Experiments show that the transferred heat depends on three factors:
(1) The change in temperature, (2) the mass of the system, and (3) the substance and phase of the substance
.
What is Q in Q MC ∆ T?
Q = mc∆T. Q = heat energy (Joules, J) m = mass of a substance (kg) c = specific heat (units J/kg∙K) ∆ is a symbol meaning “the change in”
What metal has the highest specific heat?
| Substance Specific Heat (J/g°C) | Gold (s) 0.129 | Iron (s) 0.449 | Lead (s) 0.129 |
|---|
Why do metals have low specific heat?
– they don't.
Metal atoms in pure metal are very close together and are able to transfer heat easily via conduction from one atom exciting
the other atoms next to it. … So the amount of energy it takes to heat a metal is relatively small to that of water for example.
Does specific heat capacity depend on density?
The volumetric heat capacity of a material is the heat capacity of a sample of the substance divided by the volume of the sample. … The volumetric heat capacity can also be expressed as the specific heat capacity (heat capacity per unit of mass, in J⋅K
− 1
⋅kg
− 1
)
times the density of the substance
(in kg/L, or g/mL).
Which is the fastest method of heat transfer?
Radiation
is the fastest because in this case, the transfer of heat takes place at the speed of light.
Why is CP is greater than CV?
The heat capacity at constant pressure CP is greater than the heat capacity at constant volume CV , because
when heat is added at constant pressure, the substance expands and work
.
What is CP and CV?
So,
Cp represents the molar heat capacity
What has a higher specific heat than water?
252, it is stated:
Hitherto water
has been regarded as possessing a greater specific heat than any other body excepting hydrogen. E. Lecker has shown to the Vienna Academy that mixtures of methylic alcohol and water have a specific heat higher than that of water, and accordingly take the second place, &c.
Why does specific heat increase with temperature?
Specific heat is a measure of the ability of the substance to absorb heat. … As the substance heats up,
the average kinetic energy of the molecules increases
. The collisions impart enough energy to allow rotation to occur. Rotation then contributes to the internal energy and raises the specific heat.
Why is Q MC ∆ T used?
Q=mcΔT Q = mc Δ T , 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. The specific heat is the amount of heat necessary to change the temperature of 1.00 kg of mass by 1.00oC.
