Boiling of water in an open container is a constant pressure process. On earth water boils...

Boiling of water in an open container is a constant pressure process. On earth water boils at 100 deg C (atmospheric pressure is 101.3 kPa). If we were to boil 2 kg of water on the surface of Mars, how much energy (Q) do we need to supply? The ΔU for this process is 4750 kJ. Specific volumes of water vapor and liquid are 206.00 and 0.00100 m3/kg, respectively.

Expert Solution

Q= dH-W

Q= ?

Mass of water : 2Kg

Specific volume of water vapour Vg= 206

Specific volume of water Vf = 0.001

Vg-Vf = 206-0.001 = 206 approximately

Since water is boiling in an open container therefore W=0

Q=dH

dH = dU + d(PV)

ΔU= 4750 kJ

dH= 4750 + (101.325 × 206) = 25622.95 KJ/Kg

total energy require Q to boil the water = 25622.95 × mass of the water on the mars

= 25622.95× 2Kg

= 51245.9 KJ/Kg

queen_honey_blossom answered 2 years ago

The boiling point constant for water is 0.51 Kkg/mol. Calculate boiling point of water in a...

The boiling point constant for water is 0.51 Kkg/mol. Calculate boiling point of water in a solution gf 0.010 mol/kg of sugar and a solution of 0.010 mol/kg of NaCl.

Since pure water boils at 100.00 ∘C , and since the addition of solute increases boiling...

Since pure water boils at 100.00 ∘C , and since the addition of solute increases boiling point, the boiling point of an aqueous solution, Tb , will be Tb=(100.00+ΔTb)∘C Since pure water freezes at 0.00 ∘C , and since the addition of solute decreases freezing point, the freezing point of an aqueous solution, Tf , will be Tf=(0.00−ΔTf)∘C Part A What is the boiling point of a solution made using 785 g of sucrose, C12H22O11 , in 0.250 kg of...

When water boils at 100oC and 1.00 atm of pressure, is the change in entropy of...

When water boils at 100oC and 1.00 atm of pressure, is the change in entropy of the surroundings/environment negative, zero, or positive?

1.A liquid is vaporized at its boiling point at constant pressure:

1.A liquid is vaporized at its boiling point at constant pressure: A. What is true about delta H? a. Its negative b. Its positive c. Its zero B. What is true about delta S? a. Its negative b. Its positive c. Its zero C. What is true about delta G? a. Its negative b. Its positive c. Its zero

The boiling point elevation constant for water is 0.51 degrees C/m. What is the boiling point...

The boiling point elevation constant for water is 0.51 degrees C/m. What is the boiling point of a solution made by dissolving 21.6g of a non-ionizing solute with a molar mass of 103.5 g/mol in 187g of water?

At what pressure does the boiling point of water become 350°C? If oceanic pressure increases by...

At what pressure does the boiling point of water become 350°C? If oceanic pressure increases by 0.5 atm for every 5 m, to what ocean depth does this pressure correspond? ΔHvap,m for water is 44.03 kJ/mol.

A pot of water is boiling under one atmosphere of pressure. Assume that heat enters the...

A pot of water is boiling under one atmosphere of pressure. Assume that heat enters the pot only through its bottom, which is copper and rests on a heating element. In two minutes, the mass of water boiled away is m = 3.5 kg. The radius of the pot bottom is R = 10.0 cm and the thickness is L = 1.0 mm. What is the temperature of the heating element in contact with the pot?

why is pressure constant for the combustion process of a diesel cycle?

why is pressure negative in water filtration process?

Turbines in electric power stations are driven by high pressure steam produced by boiling water in...

Turbines in electric power stations are driven by high pressure steam produced by boiling water in a boiler. The pressure in the boiler could be as high as 300 atm. This high pressure steam could explode in a disastrous way if there was a fault in the boiler. Before use, boilers are tested by filling them with water, and pressurising the water to, for example, 300 atm. Let's guess that this reduces the volume of the water to 98.5% of...

Question