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

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?

k_(34^(@))/k_(35^(@)) lt 1 , then : a) Rate increase with the rise in temperature b) rate decrease with rise in temperature c) rate does not change with rise in temperature d) None of the above

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?

100 g of water is supercooled to -10^@C . At this point, due to some disturbance mechanised or otherwise some of its suddenly freeazes to ice What will be the temperature of the resultant mixture and how much mass would freeze? (S_W = 1 cal//g//^@C and L_(W fusion) = 80 cal/g].

0.014 kg of nitrogen is enclosed in a vessel at a temperature of 27^@C . How much heat has to be transferred to the gas to double the r.m.s velocity of its molecules?

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

Following number lines shows the temperature in degree celsius (^@C) at different places on a particular day. What is the temperature difference between the hottest and the coldest places among the above?

An oxygen cylinder of volume 30 litres has an initial gauge pressure of 15 atm and a temperature of 27 ^@C . After some oxygen is withdrawn from the cylinder, the gauge pressure drops to 11 atm and its temperature drops to 17 ^@C . Estimate the mass of oxygen taken out of the cylinder ( R= 8.31 J mol^-1 K^-1 ’, molecular mass of O_2 = 32 u)