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The table gives information about the melting points and boiling points of four substances. Room temperature is about 20°C Substance Melting Point /°C Boiling Point / °C P -95 111 Q 17 118 R 114 183 S 1455 2835 Which statement is correct?
- A Substance P will freeze solid on a very cold day
- B Substance Q could be a liquid on some days and solid on others
- C Substance R never forms a liquid
- D Substance S cannot evaporate
That's Correct!
It's Wrong!
Substance Q could be a liquid on some days and solid on others because its melting point is 17°C, which is close to room temperature (20°C). This means that on colder days, the substance could be in a solid state, while on warmer days, it could transition into a liquid state.
