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Organisms can also exist in boiling thermal springs and deep-sea hydrothermal vents where average temperatures exceed `100^(@)C` (True/False)

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To determine whether the statement "Organisms can also exist in boiling thermal springs and deep-sea hydrothermal vents where average temperatures exceed 100°C" is true or false, we can follow these steps: ### Step 1: Understand the Environment - Boiling thermal springs and deep-sea hydrothermal vents are extreme environments characterized by high temperatures, often exceeding 100°C. ### Step 2: Identify the Organisms - Certain organisms, particularly some microbes, are known to thrive in these extreme conditions. These organisms are typically classified as extremophiles. ...
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Study the following statements and select the correct ones. (i) Organisms capable to tolerate a wide range of temperature are called stenothermal organisms. (ii) Thermal tolerance of different species determine their grographical distribution to a large extent (iii) Avarge temperature in tropical deserts in summer is lt 50^(@)C . (iv) Thermal springs cannot sustain life due to very high average temperature i.e., gt 100^(@)C .

The vapour pressure of a solvent in a solution is lower than that of pure solvent, at the same temperature. A higher temperature is needed to raise the vapour pressure up to the atmospheric pressure, when boiling begins. However, increase is small, like 0.1 "mol"kg^(-1) aqueous sucrose solution boils at 100.05^(@)C . Sea water, an aqueous solution, which is rich in Na^(+) and Cl^(-) ions, freezes about 1^(@)C lower than frozen water. At the freezing point of a pure solvent, the rates at which two molecules stick together to form the solid and leave it to return to liquid state are equal when solute is present. Fewer solvent molecules are in contact with surface of solid. However, the rate at which the solvent molecules leave the surface of solid remains unchanged. That is why temperature is lowered to restore the equilibrium. The freezing point depression in an ideal solution is proportional to molality of the solute. Whene 250 m,g of eugenol is added to 100 gm of camphor (K_(f)=37.9) , it lowered the freezing point by 0.62^(@)C , the molar mass of eugenol is

The vapour pressure of a solvent in a solution is lower than that of pure solvent, at the same temperature. A higher temperature is needed to raise the vapour pressure up to the atmospheric pressure, when boiling begins. However, increase is small, like 0.1 "mol"kg^(-1) aqueous sucrose solution boils at 100.05^(@)C . Sea water, an aqueous solution, which is rich in Na^(+) and Cl^(-) ions, freezes about 1^(@)C lower than frozen water. At the freezing point of a pure solvent, the rates at which two molecules stick together to form the solid and leave it to return to liquid state are equal when solute is present. Fewer solvent molecules are in contact with surface of solid. However, the rate at which the solvent molecules leave the surface of solid remains unchanged. That is why temperature is lowered to restore the equilibrium. The freezing point depression in an ideal solution is proportional to molality of the solute. The freezing point iof a 5% by mass CH_(3)COOH (aq.) solutin is -1.8^(@)C . Th vasn't Hoff factor is ( K_(f) of water =1.86 )

The vapour pressure of a solvent in a solution is lower than that of pure solvent, at the same temperature. A higher temperature is needed to raise the vapour pressure up to the atmospheric pressure, when boiling begins. However, increase is small, like 0.1 "mol"kg^(-1) aqueous sucrose solution boils at 100.05^(@)C . Sea water, an aqueous solution, which is rich in Na^(+) and Cl^(-) ions, freezes about 1^(@)C lower than frozen water. At the freezing point of a pure solvent, the rates at which two molecules stick together to form the solid and leave it to return to liquid state are equal when solute is present. Fewer solvent molecules are in contact with surface of solid. However, the rate at which the solvent molecules leave the surface of solid remains unchanged. That is why temperature is lowered to restore the equilibrium. The freezing point depression in an ideal solution is proportional to molality of the solute. An aqueous solution of 0.1 "mol" kg^(-1) concentration of sucrose should have freezing point of (K_(f)=1.86)

Liquid water coats an active (growing) icicle and extends up a short, narrow tube along the central axis. Because the water-ice interface must have a temperature of 0^(@) C, the water in the tube cannot lose energy through the sides of the icicle or down through the tip because there is no temperature change in those directions . It can lose energy and freeze only by sending energy up(through distance L) to the top of the icicle, where the temperature T_(r) can be below 0^(@) C. Take L=0.10m and T_(r) = -5^(@) C.Assume that the central tube and the upward conduction path both have crosse-sectional area A=0.5 m^(2) . The thermal conductivity of ice is 0.40 W //mcdotK , latent heat of fusion is L_(F)=4.0xx10^(5) J//K and the density of liquid water is 1000 kg //m^(3) . At what rate does the top of the tube move downward because of water freezing there?

Liquid water coats an active (growing) icicle and extends up a short, narrow tube along the central axis. Because the water-ice interface must have a temperature of 0^(@) C, the water in the tube cannot lose energy through the sides of the icicle or down through the tip because there is no temperature change in those directions . It can lose energy and freeze only by sending energy up(through distance L) to the top of the icicle, where the temperature T_(r) can be below 0^(@) C. Take L=0.10m and T_(r) = -5^(@) C.Assume that the central tube and the upward conduction path both have crosse-sectional area A=0.5 m^(2) . The thermal conductivity of ice is 0.40 W //mcdotK , latent heat of fusion is L_(F)=4.0xx10^(5) J//K and the density of liquid water is 1000 kg //m^(3) . The rate at which mass converted from liquid to ice at the top of the central tube is

At NTP water boils at 100^(@)C . Deep down the mine, water will boil at a temperature

Imagine a system, that can keep the room temperature within a narrow range between 20^@C to 25^@C . The system includes a heat engine operating with variable power P = 3KT, where K is a constant coefficient, depending upon the thermal insulation of the room, the area of the walls and the thickness of the walls. T is temperature of the room in temperature drops lower than 20^@C , the engine turns on, when the temperature increase over 25^@ C, the engine turns off, room looses energy at a rate of K(T - T_0), T_0 is the outdoor temperature. The heat capacity of the room is C. Given (T_0=10^@C, ln(3/2) =0.4 , ln(6/5)=0.18 , C/K =750 SI-unit) Suppose at t = 0, the engine turns off, after how much time interval, again, the engine will turn on

Imagine a system, that can keep the room temperature within a narrow range between 20^@C to 25^@C . The system includes a heat engine operating with variable power P = 3KT, where K is a constant coefficient, depending upon the thermal insulation of the room, the area of the walls and the thickness of the walls. T is temperature of the room in temperature drops lower than 20^@C , the engine turns on, when the temperature increase over 25^@ C, the engine turns off, room looses energy at a rate of K(T - T_0), T_0 is the outdoor temperature. The heat capacity of the room is C. Given (T_0=10^@C, ln(3/2) =0.4 , ln(6/5)=0.18 , C/K =750 SI-unit) Suppose at t = 0, the engine turns on, after how much time interval again, the engine will turn off

How many statements/s are true ? A. Temperature is the most relevant ecologically environmental factor. It ranges from subzero levels in polar areas and high altitudes to gt50^@C in tropical deserts in summer. B. A few organisms can tolerate and thrive in a wide range of temperature they are called eurythermal. C. The productivity and distribution of plants are also heavily dependent on water . D. In the aquatic environment , the sediment characteristics often determine the type of benthic animals that can thrive there.

AAKASH INSTITUTE ENGLISH-ORGANISMS AND POPULATIONS -Try Yourself
  1. is a process through which , over a long period of time, the organisms...

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  2. Communities involve interaction of organisms of species in a particul...

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  3. Ecology at organisms level is essentially ecology which tries to unde...

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  4. Organisms can also exist in boiling thermal springs and deep-sea hydro...

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  5. Aquatic organisms should not face any water-related problem. (True/Fal...

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  6. Certain group of organisms that can tolerate a wide range of salt conc...

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  7. In environment the sediment characteristics often detemine the type o...

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  8. Heat loss or heat gain is a function of surface area Very animals are...

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  9. are able to maintain homeostasis which ensures a constant internal env...

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  10. The kangaroo rat in North American deserts is capable of meeting all i...

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  11. In most animals all physiological functions proceed optimally in a wid...

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  12. Mortality and contribute to a decrease in population density.

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  13. Intrinsic rate of natural increase (r) is a very important parameter c...

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  14. In both commensalism and amensal only one species benefits and the int...

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  15. The monarch butterfly is able to protect itself from its predators bec...

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  16. The life cycles of parasites are often complex , involving one or two ...

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