As the volume increases with temperature, its density decreases.

With the rise in temperature of air its density increases.

Normally, solubility of a crystalline solid increases with temperature. Does it increase uniformly in all cases? Name a substance whose solubility : initially increases then decreases with rise in temperature.

Adsorption is accompanied by the evolution of heat. Thus, according to Le Chatelier's principle the amount of surface adsorbed should (i) decrease with increase in temperature (ii) decrease with decrease in temperature (iii) increase with increase in temperature (iv) increase with decrease in temperature

The variation of pressure with volume of the gas at different temperatures can be graphically represented as shown in figure. On the basis of this graph answer the following question. (i) How will the volume of a gas change if its pressure is increased at constant temperature ? (ii) At a constant pressure, how will the volume of a gas change if the temperature is increased from 200 K to 400 K ?

Assertion : A solid is floating in a liquid . If temperature is increased and expansion of solid is ignored, then fraction of volume immersed will increase. Reason : By increasing the temperature density of liquid will decrease.

Velocity of sound in air (I) increases with temperature (II) decreases with temperature (III) increase with pressure (IV) is independent of pressure (V) decreases with pressure (VI) is independent of temperature Choose the correct answer

The rate of chemisorption a. increaeses with decreases in temperature b. increases with increasesin tempreture c. increases with decreases in the pressure of gas d. is independent of the pressure of gas

When volume of system is increased two times and temperature is decreased half of its initial temperature, then pressure becomes ………….

Transpiration decreases as air temperature increases.

A : At constant volume on increasing temperature the collision frequency increases. R : Collision frequency prop temperature of gas.