The formula for mechanical efficiency of specific heat capacity, the formula for calculating specifi

Q Suction = cm (T-To) Q Discharge = cm (To-T).

The formula for calculating the specific heat capacity is generally Q suction = cm (t-to) q discharge = cm (to-t). c denotes the specific heat capacity. m denotes the mass of the object.

to indicates the initial temperature of the object. t denotes the final temperature of the object. （△t：

The temperature of the object changes, i.e., t-t0).

Relationship between specific heat capacity and temperature: There is no direct relationship between specific heat capacity and temperature. Because the specific heat capacity is the physical property of the substance, it does not change with any change and does not change with the temperature For a substance, the specific heat capacity is used to measure its ability to absorb heat or release heat, and is only related to the structure of the substance itself.

Difference between specific heat capacity and calorific value:

Calorific value, also known as calorie value or calorific value. In fuel chemistry, it is an important indicator of fuel quality. The amount of heat emitted by a unit mass (or volume) of fuel when it is completely combusted. It is usually measured with a calorimeter (calorimeter) or calculated from the results of a fuel analysis.

Specific heat capacity refers to the amount of heat required to increase the temperature of a certain amount of homogeneous substance by 1k in the absence of phase change and chemical change. If it is a 1mol substance, the required heat is the molar heat capacity. The molar heat capacity cp under isobaric conditions is called the 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 formula for calculating the specific heat capacity is Q suction = cm (t-to) q discharge = cm (to-t).

The formula for calculating the specific heat capacity is generally Q suction = cm (t-to) Q discharge = cm (to-t). Biguan c denotes the specific heat capacity. n denotes the mass of the object.

to indicates the initial temperature of the object. t denotes the final temperature of the object. （△t：

The temperature of the object changes, i.e., t-t0).

Specific heat capacity, also known as specific heat capacity, referred to as specific heat, is the heat capacity of a unit mass substance, that is, the internal energy absorbed or released by a unit mass containing a wise omen object when changing the unit temperature, usually represented by the symbol C, the specific heat capacity of the substance is related to the process carried out, and there are three kinds commonly used in engineering applications: constant pressure specific heat capacity cd, constant volume specific heat capacity cp and saturated state specific heat capacity.

Relation between specific heat capacity and temperature:

Specific heat capacity is not directly related to temperature. Because the specific heat capacity is the physical property of the substance, which does not change with any change or temperature, for a certain substance, the specific heat capacity is used to measure its ability to absorb or release heat, and is only related to the structure of the substance itself.

Specific heat capacity is a physical quantity that represents the thermal properties of a substance. It is usually denoted by the symbol c. If an object with mass m absorbs (or releases) heat δq in a certain process, and the temperature rises (or decreases) δt, then δq δt is called the heat capacity of the object in this process (referred to as heat capacity), which is represented by c, that is, c = δq δt

Divide the heat capacity by the mass to obtain the specific heat capacity c=c m=δq mδtFor the heat capacity and specific heat capacity of the micro process, there are c=dq dt, c=1 m*dq dt., respectivelyThus, in the finite process of the change of temperature from t1 to t2, the heat absorbed (or released) q= (t2,t1)cdt=m (t2,t1)cdt

In general, the heat capacity and specific heat capacity are both functions of temperature, but when the temperature variation range is not too large, they can be approximated as constants. So there is q=c(t2-t1)=mc(t2-t1)If the temperature change of cherry blossom is δt=t2-t1, then there is q=cmδt

This is the basic formula for calculating heat in secondary schools using specific heat capacity. The formula for calculating the heat related to specific heat is: Q = cmδt i.e. q absorption (discharge) = cm (t-t1) where c is the specific heat, m is the mass, t is the final temperature, t1 is the initial temperature, and q is the energy.

When it is endothermic, it is Q=cmδT liter (the initial temperature of the object is reduced by the actual raised temperature), and when it is exothermic, it is Q=cmδt (the actual initial temperature is reduced by the actual initial temperature).or q=cmδt=cm (end of t - beginning of t), q>0 is endothermy, q

q=cm△t。1. Definition: The ratio of the heat absorbed (or released) by a certain mass of a substance when the temperature rises (or decreases) and the product of its mass and the temperature that rises (or decreases) is called the specific heat capacity of the substance.

The specific heat capacity is expressed in c in joules (kilograms Celsius) and symbol: j (kg·?).

c) Representation. 2. Characteristics (1) The specific heat capacity is a characteristic of the substance, each substance has its own specific heat capacity, and the specific heat capacity of different substances is generally different, and the substance can be roughly identified. (2) The specific heat capacity only depends on the substance itself and its state, and has nothing to do with the mass, temperature, and heat absorption and release. (3) The larger the specific heat capacity of a substance, the less likely its temperature is to change.

Specific heat capacity of water type celery: c water = ?c)。Physical significance: When the temperature of water with a mass of 1kg rises or decreases1, the heat absorbed or released is as follows.

The formula for calculating the specific heat capacity is shown in the figure below:Q Suction = cm (T-To) Q Discharge = cm (To-T).

c denotes the specific heat capacity.

m denotes the mass of the object.

to indicates the initial temperature of the object.

t denotes the final temperature of the object.

t: The temperature of the object changes, i.e., t-t0).

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.

1. Effect on air temperature.

According to Xinhua News Agency, after the impoundment of the Three Gorges Reservoir, the world's largest artificial lake will become a natural "Bihui air conditioner", making the climate of the mountain city of Chongqing warm in winter and cool in summer. It is estimated that the temperature may drop in the summer5 and in the winter3 to 4.

2. Application of water cooling system.

People have long started to use water to cool the heat-generating machine, and in the computer CPU heat dissipation, the heat sink can be used to contact the CPU core, so that the heat generated by the CPU is transferred to the heat sink through heat conduction, and then the fan is used to take away the heat dissipated into the air.

1、c=q/（m·△t）。

2. The larger the specific heat capacity of the substance, the more heat energy is required when 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 much 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.

3. Carnot's theorem points out that the efficiency of reversible circulation is only related to the temperature of the high-temperature heat source and the low-temperature ear coarse heat source, and has nothing to do with other factors such as the working substance (working fluid bench beat) or the working path.

4. Thermodynamic temperature, also known as absolute temperature, is one of the important parameters in thermodynamics and statistical physics. Absolute zero, as it is commonly called, corresponds to degrees Celsius.