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Is the enthalpy change (H) independent of temperature?
No, the enthalpy change (H) is not independent of temperature. It can vary with temperature changes.
How does the enthalpy of an ideal gas vary with temperature?
The enthalpy of an ideal gas increases with temperature. As the temperature rises, the kinetic energy of the gas molecules also increases, leading to higher enthalpy.
What happens to enthalpy when temperature is decreased?
When temperature is decreased, the enthalpy of a system usually decreases as well. This is because enthalpy is a measure of the energy stored within a system, and lowering the temperature generally leads to lower energy content in the system.
What is the relationship between enthalpy and temperature in an isothermal process?
In an isothermal process, the temperature remains constant. Therefore, the enthalpy change is directly proportional to the temperature change.
What is the relationship between enthalpy and temperature change during an adiabatic expansion process?
During an adiabatic expansion process, there is no heat exchange with the surroundings. As a result, the change in enthalpy is directly related to the change in temperature. When a gas expands adiabatically, its temperature decreases, leading to a decrease in enthalpy.
What does the enthalpy vs temperature graph reveal about the relationship between enthalpy and temperature?
The enthalpy vs temperature graph shows how enthalpy changes with temperature. It reveals that as temperature increases, enthalpy also tends to increase. This indicates a positive relationship between enthalpy and temperature.
Is the enthalpy change (H) independent of temperature?
No, the enthalpy change (H) is not independent of temperature. It can vary with temperature changes.
How does the enthalpy of an ideal gas vary with temperature?
The enthalpy of an ideal gas increases with temperature. As the temperature rises, the kinetic energy of the gas molecules also increases, leading to higher enthalpy.
What is room temperature water?
Room temperature water is the same as room temperature which ranges from 14C-25C (59F-77F)
Why doesn't the temperature of water continually increase as it heated?
Temperature doesn't give the whole picture when you talk about boiling. A more useful property to talk about is enthalpy. Enthalpy is the energy held by the water. Prior to the boiling point, enthalpy and temperature both rise linearly. At the boiling point, temperature stops rising, but enthalpy continues to rise until it becomes steam. If you were to continue adding energy to the steam, it's temperature would rise again. The amount of energy that must be added to water to get it from water just at the boiling point to steam is the latent heat of vaporization and is equal to the enthalpy rise discussed in the previous paragraph. The latent heat of vaporization and the temperature where boiling will occur are dependant on the pressure.
What is the relationship between enthalpy and temperature?
Enthalpy is the amount of energy in a system and when this changes (when a reaction happens), the energy is either released (exothermic) or absorbed (endothermic) and this energy is usually released or absorbed as heat. Therefore when the enthalpy decreases, heat is released from the system making it exothermic. In contrast, when the enthalpy increases, heat is absorbed making it endothermic.
What happens to enthalpy when temperature is decreased?
When temperature is decreased, the enthalpy of a system usually decreases as well. This is because enthalpy is a measure of the energy stored within a system, and lowering the temperature generally leads to lower energy content in the system.
What is the relationship between enthalpy and temperature in an isothermal process?
In an isothermal process, the temperature remains constant. Therefore, the enthalpy change is directly proportional to the temperature change.
How to calculate condensed water from 1 kg of steam?
Condensed water can be calculated by finding the difference between the enthalpy of steam and water at the given temperature and pressure conditions. This typically involves using steam tables to determine the enthalpy values and then calculating the change in enthalpy to find the amount of condensed water.
What is the temperature for flavor water?
Room temperature
Is being solid at room temperature a special property of water?
Water is not solid at room temperature, unless the room is also a freezer.
Hot oil room temperature oil room temperature water below room temperature oil Which is likely to have the lowest viscosity?
Room temperature water is likely to have the lowest viscosity among the options provided. Water has a lower viscosity compared to oil, especially when the temperature is below room temperature. Oil typically has a higher viscosity compared to water.
