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10 questions
Which of the following is most suitable for summer?
Cotton
Nylon
Polyester
Silk
On heating, a solid is converted to liquid. This change is called
Melting
Fusion
Diffusion
Freezing
Give the right answer/answers
A beaker - vaporisation
A beaker - evaporation
B beaker - vaporisation
B beaker - evaporation
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
Low temperature, low pressure
High temperature, low pressure
Low temperature, high pressure
High temperature, high pressure
The property to flow is unique to fluids. Which one of the following statements is correct?
Only gases behave like fluids
Gases and solids behave like fluids
Gases and liquids behave like fluids
Only liquids are fluids
A few substances are arranged in the increasing order of ‘forces of attraction’ between their particles. Which one of the following represents a correct arrangement?
Water, air, wind
Air, sugar, oil
Oxygen, water, sugar
Salt, juice, air
The phenomenon of change of a liquid into the gaseous state at any temperature below its boiling point is called _____ .
280 K is equal to _______ degree Celcius .
On converting 25°C, 38°C and 66°C to kelvin scale, the correct sequence of temperature will be
298 K, 311 K and 339 K
298 K, 300 K and 338 K
273 K, 278 K and 543 K
298 K, 310 K and 338 K
Kinetic energy decreases with increase in temperature .
True
False
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