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Does the temperature change, the pressure does not change, and the liquid vapor pressure changes?
Answer: The pressure is related to the temperature, and the pressure does not change under the condition that the temperature is constant.
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According to the equation of state of an ideal gas of a certain mass, PV T is a constant, so the temperature does not change, the pressure does not change, and the vapor pressure of the liquid does not change.
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When the temperature does not change, the pressure does not change. If the volume changes, then the pressure wall will decrease, and if the volume decreases, then the pressure wall will become larger.
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It should not change, and the pressure of steam is directly related to the pressure.
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Does the temperature change, the pressure does not change, and the liquid vapor pressure changes?
When the temperature is constant, the saturated vapor pressure of the same liquid has nothing to do with the volume of saturated vapor, and the saturated vapor pressure will not change, and some of the gas will liquefy after pressurization, so that the pressure returns to the saturated air pressure.
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The pressure does not change, and the pressure of the liquid vapor does not change.
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If the temperature does not change, the vapor pressure of the liquid should not change.
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Which height is this if he? In fact, if it is the same, then one of its liquid pressures will also correspond, and will not change.
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Hehe, if the pressure does not change, the liquid vapor will not change.
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The temperature does not change, the pressure does not change, and the liquid air pressure and strong attack should change, so this should not need to be paid attention to.
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The depth does not change, the night intensity does not change, does the liquid vapor pressure change? Of course it is to change.
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Hello, this is actually to the ideal gas equation of state pv=nrt, liquid vapor is not strictly a gas.
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Summary. It is common knowledge that heating does not increase the temperature of water vapor. However, if you can ensure that the volume of the container remains the same, pressurizing it can increase the temperature inside the container. Because the increase in pressure will prompt the gas in the container to squeeze the inner wall, and the work will produce heat.
Can the temperature increase if the vapor pressure is constant?
It is common knowledge that heating does not increase the temperature of water vapor. But if you can keep the volume of the container constant, pressurizing it can increase the temperature inside the container. Because the increase of the carrying force of the cracking pressure dust will prompt the gas in the container to squeeze the inner wall, and the work will generate heat.
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What you are asking is the relationship between pressure and volume as the temperature does not change? Their relationship is inversely proportional.
This law can be explained by the ideal gas equation of state pv=nrt (p is the pressure permeability, v is the volume, n is the number of moles of the substance, r is the gas constant, and t is the absolute temperature). When the temperature is constant, PV is proportional to NRT. Therefore, when the pressure increases, the volume must decrease to keep the equation of state equilibrium.
Similarly, when the pressure decreases, the volume inevitably increases.
This law can also be understood through fundamental molecular dynamics. In this way, the impact force experienced by each molecule increases, resulting in an increase in the pressure of the entire gas. Conversely, when the container expands, the relative distance between the gas molecules increases, and the impact force decreases, resulting in a decrease in the overall ridge pressure and strength of the lead ridge.
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From the megacollapse p+ gh+(1 2)* v 2=c, and the temperature increases according to the equation of the ideal gas state, the subtractive circle is small, and the others are unchanged, so v increases.
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When the temperature does not change and the pressure changes, how does the state parameter of the ideal gas change?
a.The amount of change in thermodynamic energy and enthalpy is zero, and the amount of change in entropy value is not zero.
b.The change in attitude of thermodynamic energy, enthalpy, and entropy is zero.
c.The amount of change in its thermodynamic energy, enthalpy, and entropy is not zero.
d.The amount of change in its entropy is zero.
Correct answer: The amount of change in its thermodynamic energy and enthalpy is zero, and the amount of change in entropy is not zero.
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When the temperature cools, the pressure of the gas decreases, because the pressure of the gas is proportional to the amount of gas (n) and the temperature of the gas (t), and when the temperature of the gas drops, the corresponding gas pressure decreases.
Meaning of barometric pressure:
1.Air pressure generally refers to the hydrostatic pressure exerted by the gas to a certain point, and the gas pressure is caused by the continuous and irregular impact of a large number of gas molecules on the container wall.
2.According to the ideal gas law pv=nrt: the magnitude of the gas pressure is proportional to the amount of the gas (n), the temperature of the gas (t), and inversely proportional to the volume of the gas (v) r is the universal gas constant, which is about.
The glass tube about 1m long and closed at one end is filled with mercury, the nozzle is blocked, and then inserted inverted in the mercury tank, when the finger that is plugged is released, the mercury level in the tube drops a little and then it does not fall, and the height difference between the mercury surface inside and outside the tube is 760mm The reason why there is a 760mm high mercury column in the tube is precisely because of the existence of atmospheric pressure From the characteristics of liquid pressure, it can be seen that the pressure on the surface of the liquid in the mercury tank should be equal to the pressure at the same height as the 760 mm mercury column in the glass tube The pressure on the surface of the liquid in the mercury tank is atmospheric pressure, because the mercury column in the glass tube is vacuum, and it cannot be affected by the atmospheric pressure, and the pressure in the tube can only be generated by the mercury column at a height of 760mm Therefore, the atmospheric pressure is equal to the pressure generated by the mercury column at a height of 760 mm Normally, the common units that express the pressure of the gas are Pascal, millimeter mercury column (millimeter mercury), centimeter mercury column (centimeter mercury), standard atmospheric pressure, and their symbols are pa, mmhg, cmhg, atm
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All other things being equal, the pressure of the gas becomes lower when the temperature cools.
pv = nrt
The ideal gas equation of state, also known as the ideal gas law and the universal gas law, is an equation of state that describes the relationship between pressure, volume, quantity of matter, and temperature of an ideal gas in equilibrium. It is based on empirical laws such as Boyle-Mariott's law, Charlie's law, Guy-Lussac's law, etc.
The equation is PV = NRT. There are 4 variables in this equation: p is the pressure of the ideal gas, v is the volume of the ideal gas, n is the amount of gaseous substance, and t is the thermodynamic temperature of the ideal gas; There is also a constant:
r is the ideal gas constant. As can be seen, there are many variables in this equation. Therefore, this equation is known for its many variables and wide range of applications, and it is also approximately applicable to air at room temperature and pressure.
It is important to note that it is incorrect to equate the ideal gas equation with the Kraberon equation. The general Kraberon equation refers to the equation dp dt=l (tδv) that describes phase equilibrium. Although the ideal gas law was discovered by Claberon, the ideal gas equation of state is not called the Claberon equation in the world.
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The pressure of a gas is closely related to temperature: when the temperature rises, the pressure increases when the volume remains constant; And when the temperature decreases, the pressure decreases gradually.
Let's explain it microscopically: when the volume is constant, the density of the molecules is constant. In this case, when the temperature increases, the average kinetic energy of the molecules increases, and the pressure of the gas increases.
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Answer]: CAccording to the ideal gas equation: RT, the constant volume of the sailman's gas means that the density does not change, and the absolute pressure of the gas is proportional to the temperature of the Kaiji.
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At a certain temperature, the vapor pressure of all liquids increases with the increase of temperature change.
a.It is true.
b.Mistake. Correct Answer: True.
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