A ------- substance always has the same colour, taste or texture at a given temperature and pressure.

A metallic solid sphere and a hollow sphere of same material and external radius are heated to the same temperature and allowed to cool in the same environment .Which of the two has aa greater cooling rate?

Answer the following questions based on the P-T phase diagram of CO_2 : Describe qualitatively the changes in a given mass of solid CO2 at 10 atm pressure and temperature 65^-@C as it is heated up to room temperature at constant pressure

Solution of two volatile liquids A and B obey Roalt's law. At certain temperature, it is found that when the toal pressure above a solution is 0.53 bar. The mol fraction. A in the vapour is 0.45 & other liquid is 0.65. What are the vapour pressures of the two pure liquids at the given temperature?

State whether the following statement is true or false : The ignition temperature of all combustible substance is same.

Pragya tested the solubility of three different substances at different temperatures - and collected the data as given below (results are given in thefollowing table, as grams of substance dissolved in 100 grams of water to form a saturated solution). Find the solubility of each salt at 293K. Which salt has the highest solubility at this temperature?

A vessel contains 1 mole of O_2 gas at temperature T and pressure P.An identical vessel containing 1 mole of He at temperature 2T has pressure

Pragya tested the solubility of three different substances at different temperatures - and collected the data as given below (results are given in thefollowing table, as grams of substance dissolved in 100 grams of water to form a saturated solution). What is the effect of change of temperature on the solubility of a salt?

Pragya tested the solubility of three different substances at different temperatures - and collected the data as given below (results are given in thefollowing table, as grams of substance dissolved in 100 grams of water to form a saturated solution). Pragya makes a saturated solution of potassium chloride in water at 353 K and leaves the solution to cool at room temperature. What would she observe as the solution cools? Explain.

Pragya tested the solubility of three different substances at different temperatures - and collected the data as given below (results are given in thefollowing table, as grams of substance dissolved in 100 grams of water to form a saturated solution). What mass of potassium nitrate would be needed to produce a saturated solution of potassium nitrate to 50 grams of water at 313K?