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Alexxandr [17]
2 years ago
8

A balloon is filled with 1 mole of helium gas at 100 kPa of pressure and a

Chemistry
1 answer:
mylen [45]2 years ago
3 0

Answer:

B) 0.025 m^{3}

Explanation:

Solution of the problem is in picture attached,

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An experiment reveals that 125.0 grams of an unknown metal increases in temperature from 22.0 oC to 43.6 oC upon absorbing 640 j
nydimaria [60]

Answer:

                     Cp  =  0.237 J.g⁻¹.°C⁻¹

Explanation:

                      Amount of energy required by known amount of a substance to raise its temperature by one degree is called specific heat capacity.

The equation used for this problem is as follow,

                                                 Q  =  m Cp ΔT   ----- (1)

Where;

           Q  =  Heat  =  640 J

           m  =  mass  =  125 g

           Cp  =  Specific Heat Capacity  =  <u>??</u>

           ΔT  =  Change in Temperature  =  43.6 °C  -  22 °C  =  21.6 °C

Solving eq. 1 for Cp,

                                Cp  =  Q / m ΔT

Putting values,

                                Cp  =  640 J / (125 g × 21.6 °C)

                                Cp  =  0.237 J.g⁻¹.°C⁻¹

3 0
2 years ago
For an endothermic reaction, how will the value for Keq change when the temperature is increased?
Nataly [62]
I put the answer <em>C: Keq will increase</em>, on PLATO. Hope this works for you!
4 0
3 years ago
Read 2 more answers
Research benzene and list two modern-day commercial uses for his chemical​
Juli2301 [7.4K]

Benzene is used for pesticides and detergents. It is also used for other things besides these.

8 0
3 years ago
Wind erosion
Agata [3.3K]

Answer:

removes the fertile B horizon of soil

Explanation:

<em>Wind erosion has the capacity to remove the fertile B horizon of the soil.</em>

The term wind erosion generally refers to the capacity of high-magnitude wind to cause damages to the terrestrial environment. Soils can get their topmost layers removed by a strong wind if there are no barriers such as vegetation to break the speed of the wind.

The topmost layers in most cases consist of humus and the fertile minerals from parent materials. When the topmost layer is lost, the soil becomes unproductive for agriculture.

8 0
3 years ago
A chemist performs the same tests on two white solids, A and B. The results are shown in the table below.
Roman55 [17]

Answer:

i'm not sure but mabey A?

Explanation:

4 0
3 years ago
Read 2 more answers
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