Most living orgnisms can not survive at temperature above `45^@C`. How are some microbes able to live in habitals with temperature exceeding `100^@C`?

A barometer tube of length 90 cm contains some air above mercury. The reading of the mercury level is 74.8 cm when the atmospheric pressure is 76 cm and temperature is 30^@C . If the reading is observed to be 75.4 cm on some another day when temperature is 10^@C , then what will be true pressure?

How much heat energy is necessary to raise the temperature of 5 kg of water from 20^@C to 100^@C

A black body radiates 3 J/cm^2 s when its temperature is 127^@C .How much heat will be radiated /cm^2 s when its temperature is 527^@C ?

If a given mass of gas occupies a volume 60 m^3 one atmospheric pressure and temperature of 100^@C , what will be its volume at 4 atmospheric pressure when temperature remains same?

When 10 ml NaOH is added to 10 ml HCl,the temperature rises by 3^@C . If 100 ml each of same solutions are mixed the temperature will rise by

At which temperature the speed of sound in hydrogen will be same as that of speed of sound in oxygen at 100^@C ?

A copper sphere of 100 g mass is heated to raise its temperautre to 100^@C and is released in water of mass 195 g and temperature 20^@C in a copper calorimeter.If the mass of calorimeter is 50g,what will the maximum temperature of water?