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Vinil7 [7]
4 years ago
8

When someone is changing a radio channel, what is being changed?

Chemistry
1 answer:
Rashid [163]4 years ago
7 0
A...................................................
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Calculate the change in entropy when 1.00 kg of water at 100 ∘C is vaporized and converted to steam at 100 ∘C. Assume that the h
andrew11 [14]

Answer : The change in entropy is 6.05\times 10^3J/K

Explanation :

Formula used :

\Delta S=\frac{m\times L_v}{T}

where,

\Delta S = change in entropy = ?

m = mass of water = 1.00 kg

L_v = heat of vaporization of water = 2256\times 10^3J/kg

T = temperature = 100^oC=273+100=373K

Now put all the given values in the above formula, we get:

\Delta S=\frac{(1.00kg)\times (2256\times 10^3J/kg)}{373K}

\Delta S=6048.25J/K=6.05\times 10^3J/K

Therefore, the change in entropy is 6.05\times 10^3J/K

5 0
3 years ago
PLS I NEED HELP give me examples of an atom
Ugo [173]

Answer:

Neon (Ne)

Hydrogen (H)

Argon (Ar)

Iron (Fe)

Calcium (Ca)

Deuterium, an isotope of hydrogen that has one proton and one neutron.

Plutonium (Pu)

F-, a fluorine anion.

Explanation:

I got u

4 0
3 years ago
What is the nuclear binding energy in joules for an atom of helium–4? Assume the following: Mass defect = 5.0531 × 10-29 kilogra
almond37 [142]
The mass defect refers to the amount of mass that has been converted to energy to hold the nucleus together. That means the mass defect is what you're using in your equation to calculate E. <span>E=m<span>c2</span></span><span>E=(5.0531×<span>10<span>−29</span></span>)(3×<span>108</span><span>)2</span></span><span>E=4.55×<span>10<span>−12</span></span></span><span> The binding energy is 4.55 x 10^(-12) J. Let me know if you have any questions!</span>
3 0
3 years ago
Read 2 more answers
Given the following chemical reaction: 2 O2 + CH4 --&gt; CO2 + 2 H2O
Elis [28]
The answer is D) 144 grams O2
5 0
4 years ago
Read 2 more answers
5. What does a subscript tell you?
Dennis_Churaev [7]

Answer:

means that 2 atoms of the element hydrogen have joined together to form w molecule.

Explanation:

a subscript is only used when more than ine atom is being represented.

3 0
3 years ago
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