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Montano1993 [528]
3 years ago
7

Which type of electromagnetic waves has more energy, an ultraviolet wave or an infrared wave?How can you tell this by looking at

the electromagnetic spectrum?
Chemistry
1 answer:
Nitella [24]3 years ago
8 0
Ultraviolet has more energy. You can tell because it has a shorter wave. The longer the wave is on the electromagnetic spectrum the less energy is stored. 
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What type of radioactive decay involves only the release of high-energy photons and therefore does not change the mass of an ato
Irina-Kira [14]
Answer is: gamma emission or gamma decay.
<span>During gamma emission the nucleus emits radiation without changing its composition, if for example have nucleus with six protons and six neutrons (carbon atom) and after gamma decay there is nucleus with six protons and six neutrons.
</span>Gamma rays are the electromagnetic waves with the shortest wavelengths (1 pm), highest frequencies (300 EHz) and highest energy (1,24 MeV).
6 0
3 years ago
2
andrew-mc [135]
5 hope this helps I’m pretty sure it should be right
7 0
3 years ago
What does initial buret and final buret reading mean
ikadub [295]
Initial buret reading means the volume of acid taken in the buret and final reading means the remaining volume of acid after experiment
 
4 0
3 years ago
Yvette mixed together water with calcium chloride in a beaker. She noticed that the temperature changed from 21oC to 37oC. She a
Rufina [12.5K]

Answer:

The temperature changed

5 0
2 years ago
For the reaction C (s) + H2O (g) --&gt; CO (g) + H2 (g) ΔH = 131.3 kJ/mol and ΔS = 133.6 J/K-mol at 298K. At temperatures greate
TiliK225 [7]

Answer:

The reaction is spontaneous when T> 0.98 Kelvin   OR T> -272.17°C

Explanation:

Step 1: Data given

ΔH = 131.3 kJ/mol = 131300 J/mol

ΔS = 133.6 J/K*mol

T = 298K

Step 2: The balanced equation

C (s) + H2O (g) --> CO (g) + H2 (g)

Step 3: ΔG

For a reaction to be spontaneous, ΔG should be <0

When ΔG > 0 the reaction is spontaneous in the reverse direction.

ΔG = ΔH - TΔS

Since ΔG<0

ΔH - TΔS <0

Step 4: Calculate T where the reaction is spontaneous

ΔH - TΔS <0

131300 J/mol - T*133.6 J/K*mol <0

- T*133.6 J/K*mol < -131300 J/mol

-T <-131300 /133.6

-T< -982.8 Kelvin

T> 982.8 Kelvin   OR T> 709.6°C

The reaction is spontaneous when T> 982.8 Kelvin   OR T> 709.6°C

At 298 K this reaction C (s) + H2O (g) --> CO (g) + H2 (g) is <u>not spontaneous</u>

6 0
3 years ago
Read 2 more answers
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