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2 years ago

The pressure inside of a sealed tube if you raise the temperature go ______..

Chemistry

2 answers:

Ede4ka [16]2 years ago

5 0

Answer:

The pressure inside of a sealed tube will increase if the temperature is raised.

Explanation:

When the temperature of the gas inside the sealed tube is raised, the particles within that tube will start to become faster and faster. Because they are going faster they collide with the sides of the tube faster, therefore increasing the pressure inside the sealed tube.

Hope this helps!

Helen [10]2 years ago

4 0

Answer:

The pressure will increase due ot expnasion of gasses in a closed sealed tube tube .

Explanation:

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Balance the equation xcl2(aq)+agno3(aq)=x(no3)2(aq)+agcl(s)

lisabon 2012 [21]

Explanation:

$XCl _{2(aq)} + 2AgNO _{3(aq)}→X(NO _{3}) _{2(aq)} +2 AgCl _{(s)}$

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1 year ago

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Given that at 25.0 ∘C Ka for HCN is 4.9×10−10 and Kb for NH3 is 1.8×10−5, calculate Kb for CN− and Ka for NH4+. Enter the Kb val

neonofarm [45]

Explanation:

Using the expression :

$K_a\times K_b=K_w$

Where, $K_w$ is the dissociation constant of water.

At $25\ ^0C$ , $K_w=10^{-14}$

Thus, for HCN , $K_a=4.9\times 10^{-10}$

$K_b$ for CN⁻ can be calculated as:

$K_a\times K_b=K_w$

$4.9\times 10^{-10}\times K_b=10^{-14}$

$K_b=2.0\times 10^{-5}$

Thus, for NH₃ , $K_b=1.8\times 10^{-5}$

$K_a$ for $NH_4^+$ can be calculated as:

$K_a\times K_b=K_w$

$K_a\times 1.8\times 10^{-5}=10^{-14}$

$K_a=5.6\times 10^{-10}$

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2 years ago

A concentrated binary solution containing mostly species 2 (but x2 ≠ 1) is in equilib- rium with a vapor phase containing both s

marusya05 [52]

Answer:

x1= 4.5 × 10^-3, y1= 0.9

Explanation:

A binary solution having two species is in equilibrium in a vapor phase comprising of species 1 and 2

Take the basis as the pressure of the 2 phase system is 1 bar. The assumption are as follows:

1. The vapor phase is ideal at pressure of 1 bar

2. Henry's law apply to dilute solution only.

3. Raoult's law apply to concentrated solution only.

Where,

Henry's constant for species 1 H= 200bar

Saturation vapor pressure of species 2, P2sat= 0.10bar

Temperature = 25°C= 298.15k

Apply Henry's law for species 1

y1P= H1x1...... equation 1

y1= mole fraction of species 1 in vapor phase.

P= Total pressure of the system

x1= mole fraction of species 1 in liquid phase.

Apply Raoult's law for species 2

y2P= P2satx2...... equation 2

From the 2 equations above

P=H1x1 + P2satx2

200bar= H1

0.10= P2sat

1 bar= P

Hence,

P=H1x1 + (1 - x1) P2sat

1bar= 200bar × x1 + (1 - x1) 0.10bar

x1= 4.5 × 10^-3

The mole fraction of species 1 in liquid phase is 4.5 × 10^-3

To get y, substitute x1=4.5 × 10^-3 in equation 1

y × 1 bar = 200bar × 4.5 × 10^-3

y1= 0.9

The mole fraction of species 1 in vapor phase is 0.9

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1 year ago

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What is the identity of element q if the ion q2- contains 36 electrons? Type the correct symbol for the element in the box. For

dem82 [27]

Answer:- selenium, Se.

Explanations:- When an element gain electrons then it becomes negatively charged means it forms it's anion. Total electrons of the anion are the sum of electrons and the charge of the anion. In our problem, the element is q and it forms $q^-^2$ ion. The Total electrons for the anion $q^-^2$ = electrons of q + 2

As per the given info, there are 36 electrons in $q^-^2$ ion.

So, 36 = electrons of q + 2

electrons of q = 36 - 2

electrons of q = 34

q, the neutral atom has 34 electrons means it's atomic number is 34. If we check out the periodic table then the element with atomic number 34 is Selenium, Se.

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1 year ago

Which of the following does not participate in, nor is a component of, the electron transport chain? (Remember that molecules ca

Yanka [14]

Answer:

A) coenzyme A

Explanation:

The NADH and FADH₂ are the energy rich molecules which are formed in the processes like glycolysis, TCA cycle and the fatty acid oxidation as they contain pair of electrons which have very high transfer potential.

As a result of the energy produced when these molecules transfer their electrons to the oxygen , ATP is generated by a series of electron carriers which collectively is called electron transport chain (ETC).

The components of chain include Fe–S centers, Non-heme, FMN, coenzyme Q, and cytochromes . 

The energy derived from the transfer of electrons is used to pump the protons across mitochondrial membrane.

As a result, an electrochemical gradient is generated which results in some energy which is then harnessed by the ATP synthase to form ATP.

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1 year ago