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Mashutka [201]
3 years ago
13

a convex mirror has a focal length of 0.20 metre calculate the distance of the image of an object placed 0.30 cm from the mirror

describe the image formed I calculate the magnification​
Physics
1 answer:
anastassius [24]3 years ago
4 0
8 because of the amount of calcium in the equator of the state Minnesota
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A closed system consists of 0.3 kmol of octane occupying a volume of 5 m3 . Determine
Alenkinab [10]

Answer:

(a). The weight of the system is 336.32 N.

(b).  The molar volume is 16.6 m³/k mol.

The mass based volume is 0.145 m³/kg.

Explanation:

Given that,

Weight of octane = 0.3 kmol

Volume = 5 m³

(a). Molecular mass of octane

M=114.28\ g/mol

We need to calculate the mass of octane

Mass of 0.3 k mol of octane is

M=114.28\times0.3\times1000

M=34.284\ kg

We need to calculate the weight of the system

Using formula of weight

W=mg

Put the value into the formula

W=34.284\times9.81

W=336.32\ N

(b). We need to calculate the molar volume

Using formula of molar volume

\text{molar volume}=\dfrac{volume}{volume of moles}

Put the value into the formula

\text{molar volume}=\dfrac{5}{0.3}

\text{molar volume}=16.6\ m^3/k mol

We need to calculate the mass based volume

Using formula of mass based volume

\text{mass based volume}=\dfrac{volume}{mass}

Put the value into the formula

\text{mass based volume}=\dfrac{5}{34.284}

\text{mass based volume}=0.145\ m^3/kg

Hence, (a). The weight of the system is 336.32 N.

(b).  The molar volume is 16.6 m³/k mol.

The mass based volume is 0.145 m³/kg.

3 0
3 years ago
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