How do you calculate disintegration energy (Q)?

Calculate the mass defect ( $\Delta m$ ) by subtracting the total mass of the products from the total mass of the reactants. Then, use the formula $Q = \Delta mc^2$ .

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How do you calculate disintegration energy (Q)?

Calculate the mass defect ( $\Delta m$ ) by subtracting the total mass of the products from the total mass of the reactants. Then, use the formula $Q = \Delta mc^2$ .

What's the first step to solving mass-energy equivalence problems?

Identify the change in mass ( $\Delta m$ ) involved in the process.

Compare exothermic and endothermic reactions.

Exothermic: Releases heat, temperature increases, products have less energy. Endothermic: Absorbs heat, temperature decreases, products have more energy.

Compare positive and negative Q values.

Positive Q: Exothermic, energy released, reaction can occur spontaneously. Negative Q: Endothermic, energy required, reaction cannot occur spontaneously.

Define mass-energy equivalence.

The concept that mass and energy are interchangeable, as described by $E = \Delta mc^2$ .

What is disintegration energy (Q)?

The energy released or absorbed during a nuclear reaction.

Define an exothermic reaction.

A reaction that releases heat energy into the surroundings.

Define an endothermic reaction.

A reaction that absorbs heat energy from the surroundings.

What is 'c' in $E = \Delta mc^2$ ?

The speed of light (approximately 3 x 10^8 m/s).

Define heat of reaction.

The heat absorbed or released in a chemical reaction.

All Flashcards

How do you calculate disintegration energy (Q)?

Calculate the mass defect ( $\Delta m$ ) by subtracting the total mass of the products from the total mass of the reactants. Then, use the formula $Q = \Delta mc^2$ .

What's the first step to solving mass-energy equivalence problems?

Identify the change in mass ( $\Delta m$ ) involved in the process.

Compare exothermic and endothermic reactions.

Exothermic: Releases heat, temperature increases, products have less energy. Endothermic: Absorbs heat, temperature decreases, products have more energy.

Compare positive and negative Q values.

Positive Q: Exothermic, energy released, reaction can occur spontaneously. Negative Q: Endothermic, energy required, reaction cannot occur spontaneously.

Define mass-energy equivalence.

The concept that mass and energy are interchangeable, as described by $E = \Delta mc^2$ .

What is disintegration energy (Q)?

The energy released or absorbed during a nuclear reaction.

Define an exothermic reaction.

A reaction that releases heat energy into the surroundings.

Define an endothermic reaction.

A reaction that absorbs heat energy from the surroundings.

What is 'c' in $E = \Delta mc^2$ ?

The speed of light (approximately 3 x 10^8 m/s).

Define heat of reaction.

The heat absorbed or released in a chemical reaction.