3 years ago

What is some difference between a galvanometer and an electric motor?

1 answer:

4 0

Galvanometer:
its an instrument for detecting small electric currents.
Electric motor:
its an electrical machine that converts electrical energy into mechanical energy.

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4 years ago

2. If 1.75 L of a gas is at 700. K and is under 250. kPa of pressure, what will the new

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Answer:

Final volume is 3.50L

Explanation:

It is possible to find volume of a gas using combined gas law:

$\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}$

Where P is pressure, V is volume and T is temperature of 1: initial state and 2: final state

If initial state of the gas is:

1.75L of a gas is at 700K and is under 250kPa of pressure

And final state is:

298K and 53.2kPa.

Replacing:

$\frac{250kPa*1.75L}{700K} =\frac{53.2kPa*V_2}{298K}$

0.625L = 0.1785*V₂

3.50L = V₂

Thus, final volume is 3.50L

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3 years ago

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For the reaction:

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1mol H_2O requires 44kJ heat

Moles of water

Given mass/Molar mass
9/18
1/2
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Heat required

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2 years ago