3 years ago

What do we need to learn about inclined planes

1 answer:

4 0

Answer: Inclined plane, simple machine consisting of a sloping surface, used for raising heavy bodies. The force required to move an object up the incline is less than the weight being raised, discounting friction. The steeper the slope, or incline, the more nearly the required force approaches the actual weight.

Explanation:

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If aluminum has a mass of 22.3 g, how many liters of oxygen gas are required at STP?

IceJOKER [234]

Answer:

27.8

Explanation:

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3 years ago

when you decrease the distance between two magnets that are repelling, you increase the magnetic force. True or false?

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Read 2 more answers

How much heat is released when 75 g of octane is burned completely if the enthalpy of combustion is -5,500 kJ/mol CsH18? C8H18 +

aalyn [17]

Answer : The correct option is, (D) 3600 kJ

Explanation :

Mass of octane = 75 g

Molar mass of octane = 114.23 g/mole

Enthalpy of combustion = -5500 kJ/mol

First we have to calculate the moles of octane.

$\text{ Moles of octane}=\frac{\text{ Mass of octane}}{\text{ Molar mass of octane}}=\frac{75g}{114.23g/mole}=0.656moles$

Now we have to calculate the heat released in the reaction.

As, 1 mole of octane released heat = -5500 kJ

So, 0.656 mole of octane released heat = 0.656 × (-5500 kJ)

= -3608 kJ

≈ -3600 kJ

Therefore, the heat released in the reaction is 3600 kJ

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3 years ago

How do the reaction rates change as the system approaches equilibrium?

Leni [432]

It becomes more stable
delta G gets closer to zero

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3 years ago