Your heart and lung are organs each is made of different tissues such as

Part a what happens to these physical properties as the strength of intermolecular forces increases? drag each item to the appro

bearhunter [10]

1. Melting point is the temperature at which the solid turns to liquid. In order to reach this point, the intermolecular forces of the solid must be broken so that it would incorporate the molecular arrangement of a liquid. So, the stronger the intermolecular forces, the greater the energy which consequently leads to higher melting points.

2. Vapor pressure is the pressure exerted by the gas above its solid or liquid substance. It is closely related to volatility, which is the ability of the substance to convert from liquid to gas at a certain temperature. The stronger the intermolecular force, the less volatile the substance is which is manifested in increasing vapor pressure.

3. Boiling point has the same concept as melting point, but the change is from liquid to gas. So, the stronger the intermolecular forces, the greater the energy which consequently leads to higher boiling points.

4. Viscosity is the ease of fluidity. Solids, which have stronger intermolecular forces are not viscous at all. So, the stronger the intermolecular forces, the viscosity decreases.

5. Surface tension is the force the substance exerts near its surface or interface. The stronger the intermolecular force, the stronger the surface tension. 

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3 years ago

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What is the coefficient of diphosphorus trioxide? (p2o3)

denis-greek [22]

The cofficent is 2 for diphosphorus trioxide

7 0

3 years ago

If 200 g of benzoyl peroxide are used with 38 Kg of PTFE monomer, calculate the expected molecular weight of the polymer if (i)

den301095 [7]

Explanation:

The molecular weight of benzoyl peroxide is 242.23 g/mol.

Therefore, number of moles present in 200 g of benzoyl peroxide are as follows.

No. of moles = $\frac{mass}{\text{molar mass}}$

= $\frac{200 g}{242.23 g/mol}$

= 0.825 mol

Molecular weight of PTFE is 100 g/mol.Hence, calculate the number of moles of PTFE in 38 kg as follows.

As 1 kg = 1000 g. So, 38 kg = 38000 g.

No. of moles = $\frac{mass}{\text{molar mass}}$

= $\frac{38000 g}{100 g/mol}$

= 380 mol

As it is given that the initiator is 15% active. So, actual number of moles of benzoyl peroxide are as follows.

$0.15 \times 0.826$

= 0.124 mol

For combination, 1 mol of benzoyl peroxide produces 1 chain. Therefore, degree of polymerization will be calculated as follows.

DP = $\frac{380 mol}{0.124 mol}$

= 3065.33 mol

Average molecular weight of monomer is as follows.

$\frac{0.124}{0.124 + 380} \times MW_{benzoyl} + \frac{380}{0.124 + 380} \times MW_{PTFE}$

= 100.05 g/mol

Therefore, calculate the expected molecular weight of polymer as follows.

$3065.33 \times 100.05 g/mol$

= 306675.23 g/mol

Hence, for disproportion 1 mole benzoyl peroxide produces 2 chains.

DP = $\frac{2 \times 380}{0.124}$

= 6129.03

Therefore, calculate the expected polymer weight as follows.

$6129.03 \times 100.05$

= 613209.68 g/mol

Thus, we can conclude that the the expected polymer weight is 613209.68 g/mol.

6 0

3 years ago

An ocean trench .

Klio2033 [76]

Answer:

C. Occurs where a plate is moving down.

Explanation:

Ocean trenches are steep depressions in the deepest parts of the ocean where old ocean crust from one tectonic plate is pushed beneath another plate, raising mountains, causing earthquakes, and forming volcanoes on the seafloor and on land.

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3 years ago

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The main difference between heat and temperature is that temperature is solely dependent on the A. mass of a body. B. velocity o

olga_2 [115]

Answer:velocity of molecules within a body

Explanation:

Temperature is defined as the average kinetic energy of the molecules of a body. The kinetic energy of a body depends on the velocity of the molecules of the body. When the temperature of a body increases, its particles acquire greater kinetic energy and move at higher velocity. Hence temperature depends on the velocity of the molecules of a body while heat is a form of energy.

4 0

3 years ago