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Andrei [34K]
2 years ago
6

A person breathes 2.6 L of air at -11 C into her lungs, where it is warmed to 37 C. What is its new Volume?

Chemistry
1 answer:
GaryK [48]2 years ago
7 0
<h3><u>Answer</u>;</h3>

= 3.076 L

<h3><u>Explanation;</u></h3>

Using the Charles' Law;

V1/T1 =V2/T2

V1 =2.6 L, T1 = (-11 + 273) K =262 K

V2 = ? , T2 = (37 +273) k = 310 K

Therefore;

2.6/262 = V2/310

V2 = (2.6 × 310)/262

   <u> = 3.076 L </u>

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3 years ago
Someone help me Explain how non-genetic factors can affect phenotype. Give an example.
Yanka [14]

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one could be the weather.

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6 0
2 years ago
The atomic mass of Cu is 63.5. Find its electrochemical equivalent​
FrozenT [24]

Answer:

The electrochemical equivalent of copper, Cu, is 3.29015544 × 10⁻⁷ g/C

Explanation:

The given parameters are;

The element for which the electrochemical equivalent is sought = Copper

The atomic mass of copper = 63.5

The electrochemical equivalent, 'Z', of an element or a substance is the mass, 'm', of the element or substance deposited by one coulomb of electricity, which is equivalent to a 1 ampere current flowing for a period of 1 second

Mathematically, we have;

m = Z·I·t = Z·Q

We have;

Cu²⁺ (aq) + 2·e⁻ → Cu

Therefore, one mole of Cu, is deposited by 2 moles of electrons

The charge carried one mole of electrons = 1 Faraday = 96500 C

∴ The charge carried two moles of electrons, Q = 2 × 96500 C = 193,000 C

Given that the mass of an atom of Cu = 63.5 a.m.u., the mass of one mole of Cu, m = 63.5 g

Z = \dfrac{m}{Q} = \dfrac{63.5 \ g}{193,000 \ C} = 3.29015544 \times 10^{-4} \, g \cdot C^{-1}

∴ Z = 3.29015544 × 10⁻⁴ g/C = 3.29015544 × 10⁻⁷ g/C

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7 0
3 years ago
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elements have equal number of protons and neutrons

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7 0
2 years ago
Read 2 more answers
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san4es73 [151]

Answer:

-1

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K_p= K_c\times (RT)^{\Delta n}

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T is the temperature in Kelvins

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Thus, Kp is:

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4 0
3 years ago
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