# How does temperature affect the movement of atoms and molecules?

As temperature increases, velocity must increase.

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Temperature affects the movement of atoms and molecules by increasing their kinetic energy. As temperature rises, atoms and molecules move more rapidly and collide with greater force. This increased movement leads to expansion of materials as the atoms and molecules spread apart, and it can also result in changes in state, such as melting or boiling. Conversely, as temperature decreases, the movement of atoms and molecules slows down, ultimately leading to contraction of materials and changes in state, such as freezing.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- Please explain the unit of pressure ( atmospheric pressure)?? Thank you so much.
- 1: For a given amount, type, and temperature of gas, when its pressure is increased from 200 kPa to 500 kPa, what will its volume be if its initial volume is 3 cubic meters?
- A sample of gas at a pressure of 121.59 kPa, a volume of 31 L, and a temperature of 360 K contains how many moles of gas?
- A mixture containing 2.53 g each of CH4(g), C2H4(g) and C4H10(g) is contained in a 1.50 L flask at a temperature of 25°C. How would you calculate the partial pressure of each of the gases in the mixture?
- A gas sample has a volume of 225 mL at 122 kPa. What will its volume be at 101 kPa?

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