Is the specific heat capacity of the same substance related to the temperature?

Different substances have different specific heat, and specific heat is a property of matter, so it is possible to (roughly) identify different substances by difference in specific heat (note that some substances are quite close to specific heat); The specific heat of the same substance generally does not change with changes in mass and shape. For example, a glass of water and a bucket of water have the same specific heat; For the same substance, the specific calorific value is related to the state of matter, and the specific heat of the same substance in the same state is certain (ignoring the influence of temperature versus heat), but the specific heat is not the same in different states. For example, the specific heat of water is different from the specific heat of ice.

There is also a small change in specific heat capacity when the temperature changes, but it is generally negligible. The specific heat values given in the specific heat capacity table are the average values of these substances at room temperature. The specific heat capacity of the gas is closely related to the thermal expansion of the gas, which is different when the volume is constant and the pressure is constant, so there are two concepts: the specific heat capacity of the constant volume and the specific heat capacity of the constant pressure.

However, in the case of solids and liquids, the difference between the two is so small that they are generally no longer distinguished.

Specific heat capacity is not a property, specific heat capacity is a characteristic. It is related to the type, state of the object. It has nothing to do with the heat absorbed, the increased temperature, the mass of the object.

But the amount of heat absorbed by the object is directly proportional to the increased temperature, the mass of the object, and is related to the type of object (specific heat capacity).

The specific heat capacity is related to the type and state, and is not necessarily related to the temperature.

Specific heat includes the energy of hydrogen bonds. The temperature is basically linear with the amount of hydrogen bonds, and can be calculated as a constant specific heat.

Specific heat capacity is a property of a substance and has nothing to do with the mass of the substance

So the answer is: no

Not absolutely, the specific heat capacity of the same substance is not necessarily the same. The specific heat capacity of the same substance is different in different states, for example, the specific heat capacity of ice and water is different.

The greater the specific heat capacity of a substance, the more heat energy is required for the same mass and temperature rise. For example, the specific heat capacities of water and oil are about 4200 j (kg·k) and 2000 j (kg·k), respectively, that is, the heat energy of heating water of the same mass is about twice as high as that of oil.

If the same mass of water and oil are heated separately with the same heat energy, the temperature rise of the oil will be greater than that of water.

Specific heat capacity is a property of a substance, which is related to the type and state of the substance (e.g., the specific heat capacity of ice and water is different).

Specific heat capacity is the internal energy absorbed or released by a unit mass object when it changes its unit temperature, and is usually denoted by the symbol c.

The specific heat capacity can be calculated using the formula c = q mδt, but this can only be used for calculation, and it cannot be said that the specific heat capacity is related to the change of mass and temperature.

Using the concept of specific heat capacity, it is possible to deduce a molar heat capacity that represents the amount of heat required to raise 1 k of a mol of substance. And the molar heat capacity cp under isobaric conditions is called constant pressure molar heat capacity. The molar heat capacity CV under isochoric conditions is called the constant volume molar heat capacity.

The relationship between the constant pressure molar heat capacity and temperature is usually correlated as a polynomial.

The specific heat capacity of a substance is determined by the properties of the substance itself, and has nothing to do with the temperature and density of the object.

Like density, specific heat capacity is a property of a substance, which is only related to the type of substance, and has nothing to do with the mass of the substance, the temperature change, and the amount of heat absorbed and released.

Specific heat capacity law:

The specific heat capacity of different substances is generally different (with a few exceptions, such as kerosene and ice).

The specific heat capacity of most solids is smaller than that of liquids.

The specific heat capacity is also related to the state of matter, such as the specific heat capacity of water and ice.

The specific heat capacity of water is the largest.

The heat emitted by water from 100 °C to 99 °C is different from the heat emitted by 1 °C to 0 °C, and the higher the temperature, the greater the specific heat capacity.

Specific heat capacity (symbol c) is a property that does not change; Different substances have different specific heat capacities. However, the specific heat capacity also changes when the state is changed, such as water 4200j (ice change 2100j (it should be noted that the topic has a trap.)

Gases, for example, are 100 degrees Celsius during the heating of air at a constant pressure.

, the specific heat capacity of constant pressure = ; At 1000 degrees Celsius, the relationship between specific heat capacity and temperature for gas is: c=f(t)=a0+a1t+a2t 2+....where a0, a1, a2, etc. are constants related to the properties of the gas. It can be found in the manual of physical properties.

The specific heat capacity has nothing to do with temperature, it is a property of matter, and it is only related to matter.

It has nothing to do with it、He is just a property of matter itself。

q=cmδt

Heat = specific heat * mass * temperature changed.

Explain one by one, heat is a type of energy, and energy is conserved, just like if you boil a pot of water, then the energy change in this is that the chemical energy of gas is converted into the heat energy of water.

Specific heat is a property of matter that does not change. What is Nature? For example, we know that mass is also a property of matter, so if a person's mass on the earth is 50kg, will the mass on the moon change?

Of course not, we know that g = mg, on the moon man became lighter, not because of a change in mass, but because of a change in gravitational acceleration g.

Then the specific heat also has this property, and you can't say that the heat is changed, and you can infer the change in specific heat. Even if you use the electricity generated by a nuclear power plant to heat water, its specific heat will not change or the specific heat of water.

Temperature is a measure of the heat and cold of a substance, but substances have a melting point, a boiling point, and a limit temperature, such as water, how you burn it, it can only reach 100 degrees Celsius, it cannot be 101 degrees Celsius.

These are all areas that are easy to be deceived in the exam, and you must pay attention to them.

Some questions will ask you to find the specific heat of a substance, and then change a certain amount, and ask you about the specific heat, but you don't need to calculate it, because the specific heat will not change. Or he asks you to calculate the temperature of the increase of the substance, which is generally water, and if the solution is 110 degrees Celsius, then you have to consider what the ultimate temperature of the water is, because water will not reach 110 degrees Celsius.