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mylen [45]
3 years ago
9

What is the definition of enthalpy heat of vaporization?

Chemistry
1 answer:
Zina [86]3 years ago
8 0
Enthalpy heat of vaporization is the measurement of heat required to convert an amount of substance from the liquid to the gas phase.
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Molar mass of c16h19n305s
Masja [62]

Answer:

365.212

Explanation:

According to the given situation, the calculation of molar mass is shown below:-

Data provided

c_{16}\ h_{19}\ n_3\ o_5\ S

Molar mass = 16 × 12 + 19 × 1.008 + 3 × 14 + 5 × 16 + 32.06

= 192 + 19.152 + 42 + 80 + 32.06

Molar mass = 365.212

Therefore for determining the molar mass we simply solve the above equation.

So, the correct answer is 365.212

5 0
3 years ago
What is irrigation?Describe two methods of irrigation which conserve water​
MA_775_DIABLO [31]

The process of watering the crops is called irrigation.

Any two methods of irrigation are:

<h3>(i) Sprinkler system:</h3>

This system is used on the uneven land where less water is available. The perpendicular pipes, having rotating nozzles on top, are joined to the main pipeline at regular intervals. Water is allowed to flow through main pipe under pressure, which escapes from the rotating nozzles. In this way water gets sprinkled on the crop.

<h3> (ii) Drip irrigation:</h3>

This system is used to save water as it allows the water to flow drop by drop at the roots of the plants. It is the best technique for watering fruit plants, gardens and trees. Water is not wasted at all.

5 0
3 years ago
How many total atoms are in 32.8 grams of Cu2S
Lena [83]

Answer:

15

Explanation:

i

4 0
3 years ago
Need help asap electrons
kolbaska11 [484]

Answer:

need help asap electrons

positively charged, subatomic particles found in the nucleus of the atom

2. metals

elements with properties intermediate between those of metals and nonmetals

3. period

a homogeneous mixture whose particles are too small to reflect or scatter light

4. compound

two or more elements that have chemically combined

5. solution

elements that are malleable, polish to a luster, conduct heat and electricity well and tend to lose electrons in a chemical reaction

6. protons

a vertical column on the periodic table

7. group

a horizontal row on the periodic table

8. metalloids

negatively charged, subatomic particles

Explanation:

8 0
2 years ago
A rate constant obeys the Arrhenius equation, the factor A being 2.2  10^13 s-1 and the
borishaifa [10]

4.743 x 10^{-3} s-1 is the value of the rate constant.

<h3>What is an Arrhenius equation?</h3>

The Arrhenius equation describes the relationship between the rate of reaction and temperature for many physical and chemical reactions.

As per Arrhenius equation,

k = Ae-Ea÷RT

T = 227 = 500.15 K

R = 0.008314 kJ/K mol

Ea = 150 kJ/mol

Ea÷RT

= 150÷(0.008314 x 500.15)

= 36.073

k = Ae-36.073 = (2.2 x 10^{13} s-1) (2.156 x 10-{16})

k = 4.743 x 10^{-3} s-1

So, the correct answer is option d) i.e. 4.7 x 10^{-3} s-1

As per Arrhenius equation,

k = Ae-Ea/RT

T = 227 = 500.15 K

R = 0.008314 kJ/K mol

Ea = 150 kJ/mol

Ea÷RT = 150÷(0.008314 x 500.15) = 36.073

k = Ae-36.073 = (2.2 x 10^{13} s-1)(2.156 x 10^{-16})

k = 4.743 x 10^{-3} s-1

Hence,  4.743 x 10^{-3} s-1 is the value of the rate constant.

Learn more about the Arrhenius equation here:

brainly.com/question/17924702

#SPJ1

7 0
1 year ago
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