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

Most living organisms cannot survive at temperature above 45°C. How are some microbes able to live in habitats with temperatures exceeding IOO°C ?

Micro organsms having optimum temperature for growth below 15^@C and cannot grow above 20^@ are called.

By how muych the velocity increases for 1^@C1 rise of temperature?

At room temperature (27.0 ^@C) the resistance of a heating element is 100Omega . What is the temperature of the element if the resistance is found to be 117Omega . given that the temperature coefficient of the material of the resistor is 1.70 xx 10^-4 ^@C^-1 .

At room temperature (27.0^@ C) the resistance of a heating element is 100 Omega . What is the temperature of the element if the resistance is found to be 117 Omega , given that the temperature coefficient of the materials of the resistors is 1.70 xx 10^-4 ^@C^-1 ?

A block of wood is floating on water at 0^@ C to 8^@C .How does the volume,v change with use in temperature?

A hydrogenation reaction is carried out at 500 K . If the same reaction is carried out in the presence of a catalyst at the same rate, the temperature required is 400 K . Calculate the activation energy of the reaction if the catalyst lowers the activation barrier by 20 kJ mol^(-1) . a) 100 kJ/mol b) 80 kJ/mol c) 60 kJ/mol d) none of these