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ira [324]
3 years ago
6

How fast do i have to run 250 m in 30 seconds

Chemistry
1 answer:
elena-14-01-66 [18.8K]3 years ago
7 0

Answer:

S=D/T

250/30= 8.33 miles

Explanation:

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Given the values of ΔGfo given below in kJ/mol, calculate the value of ΔGo in kJ for the combustion of 1 mole of butane to form
xz_007 [3.2K]

Answer:

Δ_rG=-2753kJ

Explanation:

Hello,

Butane's combustion is:

C_4H_{10}+\frac{13}{2} O_2-->4CO_2+5H_2O

Now the change in the Gibbs free energy for this reaction is computed via (don't forget that oxygen's Gibbs free energy of formation is 0 since it is an element):

Δ_rG=4Δ_fG_{CO_2}+5Δ_fG_{H_2O}-Δ_fG_{C_4H_{10}}

Δ_rG=4(-395kJ/mol)+5(-238kJ/mol)-(-17kJ/mol)

Δ_rG=-2753kJ/mol

Now, since the calculation is done for 1 mol of butane, the change in the Gibbs free energy for this fuel is:

Δ_rG=-2753kJ

Best regards.

4 0
3 years ago
Can you help me on my science
svetlana [45]
Sbbsieoeoe9199wow9w9ww9w99w9
8 0
3 years ago
The volume of 7.91 M HCl needed to make 196.1 mL of 2.13 M HCl is ____.
Alona [7]

Answer:

a. 52.8

Explanation:

To find the number of moles of HCl we use the relation M₁V₁=M₂V₂

where M₁ is the initial molarity, M₂ the new molarity, V₁ the initial volume used, and V₂ the final volume obtained.

M₁=7.91 M

M₂=2.13 M

V₁=?

V₂=196.1 mL

Replacing these values in the relationship.

M₁V₁=M₂V₂

7.91 M× V₁=2.13 M×196.1 mL

V₁=(2.13 M×196.1 mL)/7.91 M

=52.8 mL

3 0
3 years ago
The term Reuther Ford gave to the positively charged particles in the nucleus of an antom was
lubasha [3.4K]
The term Rutherford gave to the positively charged particles in the nucleus of an atom was/is Proton. 

Hope this helps!
4 0
3 years ago
Plants are responsibe for a very important energy transformation what answer
Soloha48 [4]

Plants are chlorophyll-containing photosynthetic organisms. Thus, they convert solar or radiant energy into chemical energy under the process termed as photosynthesis.

<u>Explanation:</u>

  • Plants are chlorophyll-containing photosynthetic living beings. Consequently, they convert radiant energy into chemical energy under the procedure named  photosynthesis.  
  • Except for remote ocean hydro-thermal environment, the sun is the only source for all biological systems on earth. Plants catch just 2-10 percent of the solar radiation and transmit it as chemical energy. All creatures are reliant for their nourishment on producers (plants), either directly or indirectly. So there is a stream of energy from the sun (radiant energy) to producers and then to consumers (chemical energy).

5 0
3 years ago
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