What is vapor heated beyond a saturate state?

What is vapor heated beyond a saturate state?

• A. Superheated Steam
• B. Saturated Vapor
• C. Wet Steam
• D. Dry Steam

Answer: (A)

When a vapor is heated beyond the saturation state, its temperature rises above the saturation temperature for that pressure. At this point all the liquid has already vaporized, and the extra heat goes into raising the vapor’s temperature itself. This condition is called superheated steam. It behaves more like an ideal gas, with a higher specific volume and lower density than saturated vapor at the same pressure, and it has no liquid droplets present. Saturated vapor is at the point where liquid and vapor exist in equilibrium; wet steam is a mixture of vapor and liquid droplets; and dry steam is a loosely used term that doesn’t precisely describe the thermodynamic state after passing the saturation point.

When a vapor is heated beyond the saturation state, its temperature rises above the saturation temperature for that pressure. At this point all the liquid has already vaporized, and the extra heat goes into raising the vapor’s temperature itself. This condition is called superheated steam. It behaves more like an ideal gas, with a higher specific volume and lower density than saturated vapor at the same pressure, and it has no liquid droplets present. Saturated vapor is at the point where liquid and vapor exist in equilibrium; wet steam is a mixture of vapor and liquid droplets; and dry steam is a loosely used term that doesn’t precisely describe the thermodynamic state after passing the saturation point.