At a pressure below the triple point line,

Related MCQs

• An application requires R-12 at −140°C. The triple-point temperature is −157°C. Find the pressure of the saturated vapour at the required condition.
• Triple point of a pure substance is a point at which
• The triple point is a line on the p-V diagram, where all the three phases, solid, liquid and gas exist.
• Which of the following curves meet at triple point?
• The internal energy of saturated water at the triple point is
• The entropy of saturated water is chosen to be zero at triple point.
• At the triple point, l(sublimation) = l(vaporization) – l(fusion).
• The slope of sublimation curve is          the slope of the vaporization curve at triple point.
• Considerfollowing options for a simple Rankine cycle i) increasing pressure at exist of turbine ii) increasing average temperature of heat addition iii) decreasing pressure at exit of turbine iv) superheating of steam v) decreasing pressure during superheating. Which combination of above will increase Rankine efficiency?
• Which of the following is true?(here pa=partial pressure of dry air, pw=partial pressure of water vapour, p=atmospheric pressure)