uring wintertime, the temperature of 22°C Pa pressure. Perform this stage. Will m

Q: For a rigid tank with a volume of  contains air at  , . The tank is heated to   ,  . The specific…

A: Givenrigid tankV=3m3T1=27oCP1=200kPaT2=102oCP2=250 kPaCv=0.718 kJ/kgKCp=1.005 kJ/kgK

Q: Super heated water vapor 1kg, 20 bar, heated from 240c to 280c closed system. How much heat is…

A: Given data: Pressure, P = 20 bar Temperature, T1 = 240°C Temperature, T2 = 280°C

Q: Determine the type of steam, given: Pressure: 60kPa Interal Energy: 360 kl/kg O Saturated Liquid…

A: Given: Pressure P=60kPa Specific internal energy u=360kJ/kg

Q: Draw T-v and P-v diagrams for different P and T respectively. Show critical point and lable

A:

Q: 6.1 Construct a plot, to scale, showing constant-pressure lines of 5.0 and 10 MPa ranging from 100…

A:

Q: D. How many Btu need to be added to change 5 lb of ice at 30°F to steam at 215°F? Refer to tables…

A:

Q: Find the temperature in Celcius for water at 50 kPa, 5.27 m³/kg

A:

Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.