Why is liquid water freezing at a temperature below its freezing point a spontaneous process?

1 answer:

7 0

Well , when liquid water is kept at a temperature below it's freezing point it turns into ice. As the temperature of surrounding is below freezing point , it freezes. Hence the liquid water freezing at a temperature below its freezing point is a spontaneous process.

You might be interested in

An apparatus consists of a 4.0 dm^3 flask containing nitrogen gas at 25°c and 803 kPa, it is joined by a valve to a 10.0dm^3 fla

krok68 [10]

Answer:

so total pressure is = 261.92 kPa

partial pressure of Ar gas= 33.50 Kpa

partial pressure of N2 gas = 227 kPa

Explanation:

PV = nRT

n = PV / RT

as we know that 1dm3 = 1 Liter

smaller flask before mixing

ideal gas constant

n = (803 kPa) x (4L) / ((8.3144621 L kPa/K mol) x (25 + 273 K))

n = (3212 kPa L) / ((8.3144621 L kPa/K mol) x (298 K))

n = (3212 kPa L) /2477.7

n= 1.29 mol

In the larger flask:

n = (47.2 kPa) x (10 L) / ((8.3144621 L kPa/K mol) x (25 + 273 K)) =

n = (472 kpaL/ 2477.7

n= 0.19 mol

PV = nRT

P = nRT / V

After mixing:

P = (1.29 mol + 0.19 mol) x (8.3144621 L kPa/K mol) x (25+ 273 K) / (4 L + 10 L)

= (1.48) x (2477.7 / (14 L)

= 261.92 kPa total pressure

so total pressure is = 261.92 kPa

(261 kPa) x (0.19 mol Ar) / (1.29 + 0.19mol) =

= 49.59/1.48 = 33.50 Kpa for Arg

(261 kPa total) - (33.50 kPa Ar) = 227 kPa for N2

partial pressure of Ar gas= 33.50 Kpa

partial pressure of N2 gas = 227 kPa

3 0

3 years ago

Why are significant figures important when gathering data in the laboratory?

MAXImum [283]

Answer: Significant figures are important to show the precision of your answer. This is important in science and engineering because no measuring device can make a measurement with 100% precision. Using Significant figures allows the scientist to know how precise the answer is, or how much uncertainty there is.

Explanation:

3 0

3 years ago

What radioactive element has the lowest atomic number

galben [10]

Technetium, with atomic number denoted Z43, is the lowest-numbered element in the periodic table of which all isotopes are radioactive

3 0

3 years ago

Which list includes three types of chemical reactions?

Sidana [21]

Answer=3

<span>Decomposition, double replacement, and synthesis are 3 types of chemical reactions.</span>

7 0