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shtirl [24]
3 years ago
15

A filament at which temperature would have the most light absorbed by a piece of yellow glass?

Chemistry
1 answer:
stepladder [879]3 years ago
6 0
Soft light (answer) is the filament between (2700k-3000k). 
 The higher the kelvin number the whiter the light.

3500k-4100k is bright white/cool white

5000k-6500k is daylight 

\and those are the three primary colors of color temperature
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A flask at room temperature contains exactly equal amounts (in moles) of nitrogen and xenon.
zalisa [80]

Answer:

a) Same

b) Nitrogen

c) Same

d) Nitrogen

Explanation:

a)

The formula for partial pressure of a gas is equal to

p_B = n_B \frac{RT}{V}

Here nB is the number of moles .

The number of moles for both the gases are same and hence the partial pressure for the two gases will also be same.

b) The greater average velocity is calculated by using following formula

v_{RMS} = \sqrt{3RTM}

Here M is the molar mass.

Molar mass of nitrogen is greater than the molar mass of xenon and hence nitrogen will have higher greater average velocity

c) As we know, the average kinetic energy of gas particles is dependent on the absolute temperature of gas and if all the gases are at same temperature, their kinetic energy will also be same. Since nitrogen and xenon are at same temperature, their kinetic energy will be same

d) Effusivity is depended directly on  the thermal conductivity,  density and  and the specific heat capacity.

All these three parameters are higher in case of nitrogen. Thus, it will effuse first

4 0
2 years ago
Rutherford and his colleagues fired a beam of small, positively charged alpha particles at thin gold foil. Some of these alpha p
horsena [70]

C) The atom must contain some centrally located positive charge. He called this core of positive charge the nucleus.

Explanation:

Rutherford concluded from his experiment that the atom contains some centrally located positive charge. He called the core the nucleus.

Rutherford developed the nuclear model of the atom.

  • In a bid to explain his observation, Rutherford suggested the nuclear model.
  • The model consists of small positively charged center called the nucleus.
  • Nearly all the mass is concentrated in the nucleus.
  • The extranuclear space is made up of electrons orbiting the nucleus.

Learn more:

Rutherford brainly.com/question/1859083

#learnwithBrainly

7 0
3 years ago
what is the number of pairs of electrons that are shared between the nitrogen atoms in a molecule of N2
lesantik [10]
A Nitrogen got 7 electrons, which means every Nitrogen got 3 pairs of electrons and 1 single electron, ready to be shared.
A second nitrogen come with the same amount of electrons, 3 pairs and 1 single ready to shared. 
The 2 nitrogens put in common their single electrons to create a pair. 
Which means, that 1 pair of electron is shared between the nitrogens in a molecule of N2

Hope this Helps! :)
3 0
3 years ago
Read 2 more answers
When compounds are formed, will its heat give off?​
mariarad [96]

Answer: It depends on the type of chemical reaction that formed the compound.

Explanation:

Exothermic reactions give off the heat to the reaction environment, so the compound feels hotter.

Endothermic reactions absorb the heat from the reaction environment and the compound feels cooler.

7 0
3 years ago
A coke has a ph of 3.5. this means that it has an excess of _______ ions and would be called a(n) _____.
Anuta_ua [19.1K]
PH (potential of hydrogen) is a numeric scale that is used to show the acidity or basicity of an aqueous solution. It tells how acidic or alkaline a substance is . The pH values ranges from 0 to 14, such that acidic solutions have values between 1 to 6.9 with most acidic having a pH value of 1 and those that are basic have values from 7.1 to 14, with most acidic having a value of 14. Acidic compounds contain replaceable hydrogen ions while basic compounds contain hrdroxyl ions. In this case, a coke has a pH of 3.5 (acidic) which means that it has an excess of hydrogen ions (H+) and would be called an acid.
3 0
3 years ago
Read 2 more answers
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