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Marianna [84]
3 years ago
14

This man is using a block and tackle to lift a heavy bale of cotton. the block and tackle contains which simple machine?

Chemistry
1 answer:
AlladinOne [14]3 years ago
8 0
The simple machine used is called atwood machine. 
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Contact [7]

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Solution :

According to the Graham's law, the rate of effusion of gas is inversely proportional to the square root of the molar mass of gas.

R\propto \sqrt{\frac{1}{M}}

or,

(\frac{R_1}{R_2})=\sqrt{\frac{M_2}{M_1}}       ..........(1)

where,

R_1 = rate of effusion of nitrogen gas = 79mL/s

R_2 = rate of effusion of sulfur dioxide gas = ?

M_1 = molar mass of nitrogen gas  = 28 g/mole

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Now put all the given values in the above formula 1, we get:

(\frac{79mL/s}{R_2})=\sqrt{\frac{64g/mole}{28g/mole}}

R_2=52mL/s

Therefore, the rate of effusion of sulfur dioxide gas is 52 mL/s.

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Is one mole of zinc the same as one atom of zinc?
Papessa [141]

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As the temperature of a gas in a closed container increases, what is true of the particles in the substance? (2 points)
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