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dem82 [27]
3 years ago
11

24. a. Suppose different parts of a sample material

Chemistry
1 answer:
yaroslaw [1]3 years ago
7 0

Answer:

One can conclude that the metal is an alloy.

Explanation:

An alloy is a combination of metal that has two or more elements. Different metals are usually combined to give it more strength or make it more resistant to corrosion.

Cheers!

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At 27.8 °C, a gas occupies 1500 mL. What volume will it have at 100.0 °C?
igor_vitrenko [27]

Answer:

V₂  = 1866.32 mL

Explanation:

Given data:

Initial temperature = 27.8°C (27 + 273.15 K = 300.15 k)

Initial volume = 1500 mL

Final volume = ?

Final temperature = 100.0°C (100.0 + 273.15 K = 373.15 K)

Solution:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

1500 mL / 300.15 k = V₂ / 373.15 K

V₂  = 1500 mL× 373.15 K/ 300.15 k

V₂  = 560175 mL. K /300.15 k

V₂  = 1866.32 mL

4 0
3 years ago
Read 2 more answers
A sample of ice absorbs 15.6kJ of heat as it undergoes a reversible phase transition to form liquid water at 0∘C. What is the en
Murrr4er [49]

Answer:

Entropy change of ice changing to water at 0°C is equal to 57.1 J/K

Explanation:

When a substance undergoes a phase change, it occurs at constant temperature.

The entropy change Δs, is given by the formula below;

Δs = q/T

where q is the quantity of heat absorbed or evolved in Joules and T is temperature in Kelvin at which the phase change occur

From the given data, T = 0°C = 273.15 K, q = 15.6 KJ = 15600 J

Δs = 15600 J / 273.15 K

Δs = 57.111 J/K

Therefore, entropy change of ice changing to water at 0°C is equal to 57.1 J/K

8 0
4 years ago
Consider the chart describing the element. According to the chart, the element is _______ with an atomic number of ___________
Gre4nikov [31]

The answer for the question is Lithium; 3.                                                  

4 0
4 years ago
Read 2 more answers
A river and all of its tributaries make up a(n) _________.
Novay_Z [31]

Answer:

A river and its tributaries make up a watershed (aka river system or drainage basin)

Pls mark me as brainliest

5 0
3 years ago
Read 2 more answers
Give the structure of the product obtained when cyclopropene loses a proton. Will the product be aromatic or not?
astra-53 [7]

Answer:

not aromatic

Explanation:

Cyclopropene -

as the compound is is made to lose a proton , and gains a negative charge on its ring ,

Now, The ring can become aromatic or anti - aromatic depending on the number of π electrobns ,

According to Huckel 's rule ,

The cyclic compounds with ( 4n+2 ) π electrons , where , n = 0, 1, 2, 3 ... , are considered to be aromatic in nature ,

And the cyclic compounds with ( 4n ) π electrons , where , n = 1, 2, 3 ... , are considered to be anti - aromatic in nature.

Now, for the cyclopropene structure , the number of π electron are equal to 4 , 2 from the double bond and 2 from the negative charge .

Therefore , the compound becomes not aromatic or anti - aromatic .

3 0
3 years ago
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