In solids, particles can only:
- AMove freely from place to place
- BVibrate about their mean positions
- CSlide past each other
- DRotate around each other
Which state of matter has the weakest attractive forces between particles?
- ASolid
- BLiquid
- CGas
- DAll have equal forces
The change of state from solid to liquid is called:
- AFreezing
- BMelting
- CCondensation
- DSublimation
The direct change of a solid into a gas is called: α β γ = r γ + a γ g
- AEvaporation
- BBoiling
- CSublimation
- DDeposition
The SI unit of the coefficient of linear expansion is:
Evaporation occurs at:
- AOnly at the boiling point
- BAt any temperature
- COnly in solids
- DOnly in gases
The heat energy absorbed or released during a phase change without a change in temperature is called:
- ASpecific heat
- BLatent heat
- CThermal expansion
- DConduction
The latent heat of fusion of ice is:
- AB. C. D. MCQ 9. Superconductors are materials that have: A. High resistance
- BZero resistance below a critical temperature
- CResistance that increases with temperature
- DNo free electrons
The change of state from gas to solid directly is called:
- ADeposition
- BMelting
- CFreezing
- DSublimation
