3 years ago

Why the renewable energy resource you chose is positive

1 answer:

6 0

Answer:

Renewable energy require less overall maintenance than generators that use traditional fuel sources. Renewable energy has numerous health and environmental benefits.

Explanation:

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What mass of helium, in grams, is required to fill a 6.1-l balloon to a pressure of 1.1 atm at 25 °c?

kodGreya [7K]

PV=nRT
(1.1)(6.1)=(n)(0.08201)(298)
6.71=n(0.08201*298)
n=0.2745613769 moles Helium
n(Mm)=mass
0.2745613769(4.00)
1.098245508 grams of Helium

4 0

4 years ago

A sample of ideal gas is heated in a 2L vessel at a temperature of 320 Kelvin. the pressure in the vessel is 2.5 atm. What is th

Amiraneli [1.4K]

Answer:

Pressure=3.91atm

Explanation:

As given in the question that gas is ideal so

we can use Ideal gas equation

$PV=nRT$

volume of gas is not given directly but volume of container is given and we know gas takes the volume in which they are kept.

therefore mole remains contant

P1=2.5 atm

V1=2L

T1=320K

P1=?

V1=1L

T1=250K

$2.5\times 2V=nR \times 320$ ..............(1)

$P\times V=nR \times 250$ ................(2)

eqn2/eqn1

$\frac{P}{2.5} \times \frac{1}{2} =\frac{250}{320}$

Pressure=3.91atm

7 0

3 years ago

a student lists three temperature measurements 100 f , 100 c, and 100 k of the highest temps 100 k is the highest true or false

Archy [21]

Answer:

False, it is actually 100 kelvins

Explanation:

7 0

3 years ago

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One evening, Alex notes the Moon set in the west at around 8 PM. What would have been the approximate time of moonrise that day?

ra1l [238]

Answer:

Explanation:

Early evening about 5 p. m.

6 0

3 years ago

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Acid dissociation reaction for E-amino group (side chain of Lys): (R)E-NH3+ # (R)E-NH2 + A. For a weak acid such as the side cha

Andrew [12]

Answer:

0.1

Explanation:

$According \ to \ Henderson \ Hasselbalch \ equation:$

$pH = pka + log \dfrac{[A^-]}{[HA]}$

From the given question;

$log \dfrac{[\varepsilon- NH_2]}{[\varepsilon - NH_3^+]}=pH - pKa$

$\implies log \dfrac{[\varepsilon- NH_2]}{[\varepsilon - NH_3^+]}=9 -10$

$\implies log \dfrac{[\varepsilon- NH_2]}{[\varepsilon - NH_3^+]}=-1$

$\implies \dfrac{[\varepsilon- NH_2]}{[\varepsilon - NH_3^+]}=10^{-1}$

$\implies \dfrac{[\varepsilon- NH_2]}{[\varepsilon - NH_3^+]}=0.1$

7 0

3 years ago