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3 years ago

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Which is true about the temperature of a gas?

1 answer:

Novosadov [1.4K]3 years ago

5 0

The statement that true about the temperature of a gas is at <span> a higher temperature, the particles have a higher average kinetic energy. The rest of the choices do not answer the question above.</span>

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Aquafers are bodies of water found above ground with thriving ecosystems.<br> O True<br> O False

tekilochka [14]

False.

Aquifers are actually underground! The water from this water-bearing permeable rock is used in wells. Here’s a chart (sorry for the sloppiness).

5 0

2 years ago

How much energy is required to completely melt a 250 gram ice cube that is already at 0 degrees Celsius? Show your work & un

patriot [66]

Answer:

Q = 83500J

Explanation:

$Q = L_{ice} *m$

$L_{ice} = 3.34*10^{5} \frac{J}{kg}$

$m = 250g = 0.25kg$

$Q = (3.34*10^{5} \frac{J}{kg})*(0.25kg)$

$Q = 83500J$

7 0

2 years ago

A simple equation relates the standard free‑energy change, ΔG∘′, to the change in reduction potential. ΔE0′. ΔG∘′ = −nFΔE0′ The

MA_775_DIABLO [31]

Answer : The value of standard free energy is, -152.4 kJ/mol

Explanation :

The given balanced cell reaction is:

$FADH_2+\frac{1}{2}O_2\rightarrow FAD+H_2O$

The half reaction will be:

Reaction at anode (oxidation) : $FADH_2\rightarrow FAD+2H^++2e^-$ $E^0_{Anode}=+0.03V$

Reaction at cathode (reduction) : $\frac{1}{2}O_2+2H^++2e^-\rightarrow H_2O$ $E^0_{Cathode}=+0.82V$

First we have to calculate the standard electrode potential of the cell.

$E^o=E^o_{cathode}-E^o_{anode}$

$E^o=(+0.82V)-(+0.03V)=+0.79V$

Relationship between standard Gibbs free energy and standard electrode potential follows:

$\Delta G^o=-nFE^o_{cell}$

where,

$\Delta G^o$ = standard free energy = ?

n = number of electrons transferred = 2

F = Faraday constant = $96.48kJ.mol^{-1}V^{-1}$

$E^o_{cell}$ = standard electrode potential of the cell = 0.79 V

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

$\Delta G^o=-(2)\times (96.48kJ.mol^{-1}V^{-1})\times (0.79V)$

$\Delta G^o=-152.4kJ/mol$

Therefore, the value of standard free energy is, -152.4 kJ/mol

8 0

3 years ago

Mutations are more important to the evolution of a species because

EleoNora [17]

Answer: Mutations are important to the evolution of a species because is creates new DNA for a certain gene, creating a new allele.

Hope this helps!!! Good luck!!! ;)

8 0

3 years ago

What is the correct value for Avogadro's number?

nydimaria [60]

Answer: Option A. 6.022 x 10^23

Explanation:

8 0

3 years ago