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When a graph is drawn between the pressure and temperature of the gas it is known as _________
  • a)
    isochoric
  • b)
    isobar
  • c)
    isotherm
  • d)
    isotopic
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
When a graph is drawn between the pressure and temperature of the gas ...
When a graph is plotted between pressure on y-axis and temperature on x-axis straight line is formed at a constant volume and this graph is known as isochoric. As we know that gay lussac’s law proposes that at the constant volume the pressure and temperature are directly proportional.
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When a graph is drawn between the pressure and temperature of the gas ...
Understanding Gas Laws
In thermodynamics, different types of processes are defined based on the variables that are held constant. When examining the relationship between pressure and temperature, it is essential to identify the correct type of process.
What is an Isochoric Process?
- An isochoric process is one in which the volume of the gas remains constant.
- During this process, any change in temperature will directly affect the pressure of the gas, leading to a relationship between temperature and pressure.
Characteristics of an Isochoric Process:
- Constant Volume: The volume does not change, which means the gas is contained within a rigid container.
- Pressure-Temperature Relationship: According to Gay-Lussac's Law, if the volume is constant, the pressure of the gas is directly proportional to its temperature (in Kelvin).
Other Process Types for Context:
- Isobaric Process (Option B): Involves constant pressure while the volume and temperature can change.
- Isothermal Process (Option C): Maintains constant temperature while pressure and volume vary.
- Isotopic Process (Option D): Generally relates to isotopes in nuclear chemistry, not applicable here.
Conclusion
The given question asks for the relationship between pressure and temperature, which fits the description of an isochoric process where volume is constant. Therefore, the correct answer is option 'A'. Recognizing these distinctions is crucial for understanding gas behavior in various thermodynamic processes.
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The Ideal Gas Law is as follows:PV=nRTP is pressure as measured in Pascals, V is volume as measured in cubic meters, n is the number of moles of the gas, R is the gas constant known as 8.314 Joules per mole times Kelvin, and T is the temperature measured in Kelvin.A class of students began studying the Ideal Gas Law and how the Pressure and the Volume relate to one another. They took 20 moles of a sample gas and kept the room at a temperature of 300 Kelvin. They then used different sized containers of the gas to limit and expand the volume. At each different volume, they measure the pressure of the gas on its container. The table they made from their results is seen in table 1.TABLE 1FIGURE 1The graph the students made based on the data is seen in Figure 1.Pressure is created by the movement of the gas molecules pushing against a container. 0 Kelvin is known as absolute 0, the temperature at which all molecule movement theoretically stops.Q. Describe the relationship between the temperature and the pressure.

Chemists can model how solids, liquids, and gases behave at different temperatures and pressures with a graph called a phase diagram. When the pressure and temperature are simultaneously known, a scientist can predict whether the material will be in a specific state. The diagram is divided into sections depending on the phase and the lines between sections represent phase transitions occurring between two or more separate phases.In general, solids of neatly stacked molecules exist when temperatures are low and pressures are intermediate. These values decrease the kinetic energy of the molecules enough to allow for attractive forces to begin the stacking process. Liquids, by contrast, are found at intermediate pressures and temperatures. The temperature is high enough to impart enough kinetic energy to prevent solid formation and the pressure is high enough to prevent the liquid from becoming a gas. Finally, a gas forms at low pressures and high temperatures. The high level of kinetic energy prevents molecules from associating with one another.Materials can undergo processes called phase transitions, meaning they can transition from one phase to another. The transition from a solid to a liquid is called melting, while the reverse transition is called freezing. Vaporization occurs when a liquid becomes a gas, while condensation occurs when a gas becomes a liquid. Finally, in a process called sublimation, a solid can directly become a gas without passing through a liquid phase. Additionally, when a gas directly becomes a solid, this is known as deposition.Q.According to the figure, the material represented by area three is in what phase?

Chemists can model how solids, liquids, and gases behave at different temperatures and pressures with a graph called a phase diagram. When the pressure and temperature are simultaneously known, a scientist can predict whether the material will be in a specific state. The diagram is divided into sections depending on the phase and the lines between sections represent phase transitions occurring between two or more separate phases.In general, solids of neatly stacked molecules exist when temperatures are low and pressures are intermediate. These values decrease the kinetic energy of the molecules enough to allow for attractive forces to begin the stacking process. Liquids, by contrast, are found at intermediate pressures and temperatures. The temperature is high enough to impart enough kinetic energy to prevent solid formation and the pressure is high enough to prevent the liquid from becoming a gas. Finally, a gas forms at low pressures and high temperatures. The high level of kinetic energy prevents molecules from associating with one another.Materials can undergo processes called phase transitions, meaning they can transition from one phase to another. The transition from a solid to a liquid is called melting, while the reverse transition is called freezing. Vaporization occurs when a liquid becomes a gas, while condensation occurs when a gas becomes a liquid. Finally, in a process called sublimation, a solid can directly become a gas without passing through a liquid phase. Additionally, when a gas directly becomes a solid, this is known as deposition.Q.According to the figure, the material represented by Area 1 is in what phase?

Chemists can model how solids, liquids, and gases behave at different temperatures and pressures with a graph called a phase diagram. When the pressure and temperature are simultaneously known, a scientist can predict whether the material will be in a specific state. The diagram is divided into sections depending on the phase and the lines between sections represent phase transitions occurring between two or more separate phases.In general, solids of neatly stacked molecules exist when temperatures are low and pressures are intermediate. These values decrease the kinetic energy of the molecules enough to allow for attractive forces to begin the stacking process. Liquids, by contrast, are found at intermediate pressures and temperatures. The temperature is high enough to impart enough kinetic energy to prevent solid formation and the pressure is high enough to prevent the liquid from becoming a gas. Finally, a gas forms at low pressures and high temperatures. The high level of kinetic energy prevents molecules from associating with one another.Materials can undergo processes called phase transitions, meaning they can transition from one phase to another. The transition from a solid to a liquid is called melting, while the reverse transition is called freezing. Vaporization occurs when a liquid becomes a gas, while condensation occurs when a gas becomes a liquid. Finally, in a process called sublimation, a solid can directly become a gas without passing through a liquid phase. Additionally, when a gas directly becomes a solid, this is known as deposition.Q. According to the figure, the material represented by area two is in what phase?

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When a graph is drawn between the pressure and temperature of the gas it is known as _________a)isochoricb)isobarc)isothermd)isotopicCorrect answer is option 'A'. Can you explain this answer?
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