Most living organisms cannot survive at temperature above `45^0` C. How are some microbes able to live in habitats with temperature exceeding `100^0` C ?

Convert the following absolute temperatures into ^@C . 0 k

A body cols at the rate of 0.5^@C/s when it is at a temperature of 50^@C above the surroundings. What would be the rate of cooling when the body is at a temperature of 30^@C above the surroundings.

How much of heat is to be added to 100g of ice at 0^@C to convert it to water at that temperature ?

How much of heat is required to change 20 g of water at temperature 80^@C to steam at 100^@C ?

At what temperature would the volume of a given mass of a gas at constant pressure be twice to its volume at 0^@C

Calculate the temperature at which RMS velocity of a gas is half its value at 0^@c , pressure remaining constant.

A sample of gas is at 0^@C The temperature at which its rms speed of molecules will be doubled is :

The gas phase decomposition of dimethyl ether follows the first order kinetics as CH_3 - O - CH_(3) (g) to CH_(4) (g) + H_(2) (g) + CO(g) This reaction is carried out in a constant volume container at temperature of 500°C and has a half-life of 14.5 min. Initially, only dimethyl ether is present at a pressure of 0.40 atm. After 12 min, find the total pressure of the system. Assume ideal gas behaviour.

Calculate the efficiency of a Carnot cycle working between the two temperatures 100^@C and 0^@C .