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Chemistry

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Shyann Murazik

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Cards in this guide (10)
What is The amount of energy required to raise the temperature of one KG of a substance by one KG is determined by its

By its specific heat.

By its specific heat.

By its specific heat.

By its specific heat.

Hess's law is based on what principle

conservation of energy

What does the field of thermodynamics relate to

Changes in energy in systems

What does thermal energy refer to

The kinetic energy within a system

Which of these actions increases enthalpy in the air molecules of the Earth's atmosphere

The air being heated by the sun.

What does S0 mean

the system has become more random

Which functional group does the molecule below have

An Which functional group does the molecule below have?

A. Carbonyl B. Ether C. Hydroxyl D. Amino swer this question…
How much energy is generated from freezing 2.5g water

0

How much energy is needed to raise the temperature 2.0 g of water 5 at degrees Celsius

42 J

How is the Hvap used to calculate the mass of liquid boiled by one kj of energy

The Hvap is usually given as J/g or J/mole for example. Let's say you have it in J/g. For water this is about 2260 J/g, meaning it takes 2260 joules to vaporize 1 g of water. Set up an equation using dimensional analysis: 1 kJ x 1000 J/kg x 1 g/2260 J = 0.44 g

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