The melting point of gallium is 29.8 degree Celsius and its boiling point is 2204 degree Celsius. What state will it be at 100 degree Celsius?
At 100 degree Celsius, gallium will be in a liquid state.
What store of energy changes during a change of state?
The store of energy that changes during a change of state is the potential energy or the internal energy of the substance. This energy is responsible for the intermolecular forces between the particles within the substance. During a change of state, such as melting or boiling, this potential energy is converted into kinetic energy to overcome the intermolecular forces and allow the particles to move and rearrange themselves.
Solids have a fixed shape because....
1. The particles are far apart
2. The particles are are not not free to move around
3. The particles are close together
4. The particles are free to move around
The correct answer is 3. The particles in a solid are close together. This close arrangement of particles allows them to maintain a fixed shape, as they are held in place by strong intermolecular forces. The particles in a solid do not have enough kinetic energy to overcome these forces and move around freely, which is why solids have a definite shape.
no its not
Apologies for the incorrect response. You are right, the correct answer is 2. The particles in a solid are not free to move around. They are held in a fixed position due to strong intermolecular forces, which prevents them from easily changing their relative positions. This lack of freedom in movement is the reason why solids have a fixed shape.
Which of these is a property of a liquid?
1. Cannot be squashed
2. Keeps its shape
3. Particles move to completely fill their container
4. Does not flow