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1 year ago

CAN someone please help me !!!!!!!!!!!

Chemistry

1 answer:

vova2212 [387]1 year ago

4 0

Yes, the motor would run faster because the increased electrical force increases the magnetic force in the motor. That is option B.

<h3>What are electrical forces?</h3>

An electrical field is defined as the type of field that is surrounded by charged particles which may be negatively or positively charged.

A battery is an electron chemical cell that has the ability to generate electrical energy through chemical reaction in its cells.

A magnetic force is defined as the type of force generated through the action of moving electric charges or magnetic materials.

When the number of batteries in a circuit is being increased, there would be increase in the input voltage leading to an increase in the magnitude of the speed.

Therefore, the motor is expected to run faster because of the increased magnetic force of the motor which is caused by increase electrical force.

Learn more about magnetic field here:

brainly.com/question/26257705

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The chemical equation for the decomposition of dinitrogen pentaoxide follows:

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As, the enthalpy of the reaction is positive, the reaction is said to be endothermic in nature.

To calculate the activation energy for the reverse reaction, we use the equation:

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$E_a_{\text{(backward)}}$ = Activation energy of the backward reaction = ?

$\Delta H$ = Enthalpy of the reaction = +55 kJ/mol

Putting values in above equation, we get:

$102=E_a_{\text{(backward)}}+55\\\\E_a_{\text{(backward)}}=(102-55)=+47kJ/mol$

Hence, the activation energy of the reverse reaction is 47 kJ/mol

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