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Nady [450]
3 years ago
15

-Material A has a melting point of 34°C whereas Material B has a melting point of 56°C. Both materials have been placed in an ov

en at 50°C Describe the state of each material after being being in the oven for a period of time.
I'm confused, if material B is on for the same amount of time does that mean that it has liquified and material A has melted slightly?
Chemistry
1 answer:
attashe74 [19]3 years ago
6 0

Answer:

Explanation:

Material A has a melting point of 34°C

Material B has a melting point of 56°C

Both materials, lets say a metal have been subjected to a temperature of 50°C

After a period of time, both of them would have melted to their liquid state.

The atoms of the solids would vibrates and the bonds would begin to break to form melt.

Material A would be the first to melt as it has a lower melting point. The lower the melting point, the faster and quicker it would reach its melting temperature.

Material B would need to accumulate more heat and its temperature would continue to rise for the phase change to occur. As it reaches the 50°C mark, the bonds are set free and a melt forms.

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1.
kenny6666 [7]

<u>Answer:</u> The value of K_p is 324

<u>Explanation:</u>

We are given:

Initial pressure of S_8(g) = 1.00 atm

The chemical equation for the conversion of S_8(g) to S_2(g) follows:

                  S_8(g)\rightleftharpoons 4S_2(g)

<u>Initial:</u>          1

<u>At eqllm:</u>    1-x       4x

We are given:

Equilibrium partial pressure of S_8(g)=0.25atm

Evaluating the value of 'x', we get:

\Rightarrow (1-x)=0.25\\\\\Rightarrow x=1-0.25=0.75

The expression of K_p for the above reaction follows:

K_p=\frac{(p_{S_2})^4}{p_{S_8}}

p_{S_2}=4x=(4\times 0.75)=3atm

p_{S_8}=0.25atm

Putting values in above expression, we get:

K_p=\frac{3^4}{0.25}\\\\K_p=324

Hence, the value of K_p is 324

5 0
3 years ago
Please help, chemistry is kicking me!
Natali [406]

Answer:

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Explanation:

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Which molecule is usually comprised of six carbons in a ring (with six sides)?
Oksana_A [137]
The hydrocarbon is usually named using the prefix that would indicate or entail how many carbon are present in it. For six carbons, the name would begin with hexa-. For cyclic molecule, the name would begin further with cyclo-. Thus, for the molecule that is described above, the name would be, cyclohexane. 

Another, more well-known, component is the cyclic molecule with alternating double bonds, this will be named, benzene. 
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Explanation:

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3 years ago
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