Can Matter Change its State?
Important Questions on Can Matter Change its State?
Conversion of solid state to liquid state is called fusion; what is meant by latent heat of fusion?
Conversion of solid to vapour is called sublimation. Name the term used to denote the conversion of vapour to solid.
Classify the following into osmosis/diffusion:
Spreading of virus on sneezing.
Why does the temperature of a substance remain constant during its melting point or boiling point?
It is a hot summer day, Priyanshi and Ali are wearing cotton and nylon clothes respectively. Who do you think would be more comfortable and why?
A glass tumbler containing hot water is kept in the freezer compartment of a refrigerator (temperature If you could measure the temperature of the content of the tumbler, which of the following graphs would correctly represent the change in its temperature as a function of time.
Match the physical quantities given in column A to their Sl units given in column B.
| Column (A) | Column (B) | ||
| (a) | Pressure | (i) | Cubic metre |
| (b) | Temperature | (ii) | kilogram |
| (c) | Density | (iii) | Pascal |
| (d) | Mass | (iv) | Kelvin |
| (e) | Volume | (v) | Kilogram per cubic metre |
A student heats a beaker containing ice and water. He measures the temperature of the content of the beaker as a function of time. Which of the following figure would correctly represent the result? Justify your choice.
A sample of water under study was found to boil at at normal temperature and pressure. Is the water pure? Will this water freeze at Comment.
The boiling points of diethyl ether, acetone and -butyl alcohol are and respectively. Which one of the following correctly represents their boiling points in Kelvin scale?
Choose the correct statement from the following.
On converting and to Kelvin scale, the correct sequence of temperature will be
Seema visited a Natural Gas Compressing Unit and found that the gas can be liquefied under specific conditions of temperature and pressure. While sharing her experience with friends she got confused. Help her to identify the correct set of conditions.
Which one of the following sets of phenomena would increase on raising the temperature?
