Dermatologists often remove small precan...

Dermatologists often remove small precancerous skin lesions by freezing them quickly with liquid nitrogen, which has a temperature of 77 K. What is this temperature on the (a) Celsius ?

`-196 ^@C`

`-321^@C`

`-164^@C`

`-242^@C`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

TEMPERATURE, ZEROTH LAW OF THERMODYNAMICS AND THERMAL EXPANSION
RESNICK AND HALLIDAY|Exercise PRACTICE QUETIONS (More than One Correct Choice Type )|7 Videos
TEMPERATURE, ZEROTH LAW OF THERMODYNAMICS AND THERMAL EXPANSION
RESNICK AND HALLIDAY|Exercise PRACTICE QUETIONS (Matrix- Match )|3 Videos
TEMPERATURE, ZEROTH LAW OF THERMODYNAMICS AND THERMAL EXPANSION
RESNICK AND HALLIDAY|Exercise PROBLEMS|24 Videos
RIGID BODY DYNAMICS-II
RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS (Integer Type)|2 Videos
THE FIRST LAW OF THERMODYNAMICS
RESNICK AND HALLIDAY|Exercise PRACTICE QUESTIONS ( INTEGER TYPE )|3 Videos

Similar Questions

Explore conceptually related problems

What are the average translation kinetic energies K_(Avg) of the oxygen molecules and nitrogen molecules in the air that breathe ? Assume that air is an ideal gas at a temperature of 300 K , which is the traditional value taken for room temperature .

Calculate the rms speed of He and N_(2) molecules in the atmosphere at 300 K. Explain why our atmosphere has only a small amount of helium though it has large nitrogen content. The sun has temperature close to 6000 K. How can you explain the existence of He in the Sun.

A small quantity of a liquid which dows not mix with water sinks to the bottom at 20^@ C, the densities of the liquid and water being 1021 and 990 kg//m^(3) , respectively. To what teperature must the mixture be uniformly heated in order that the liquid forms globules which just float on water ? the cubical expansion of the liquid and water over the temperature ranges is 85xx10^(-5)//K and 45xx10^(-5)//K respectively.

Liquid nitrogen (t= - 196^@ C) is inside a Dewar vessel. The air surrounding the vessel has a temperature t=20^@ C . The pressure of the residual gas between the walls of the vessel is about 10^(-1) Pa (roughly 10^(-6) rnm fig). The mean free pa th of the "molecules" of air at atmospheric pressure is about 10^(-7)m . What is the temperature of the air between the walls of the vessel?

Vessel A contains an ideal gas at a pressure 5xx10^(5) Pa and is connected with a heat source which maintains its temperature at 300 K . Another vessel B which has four time greater inner volume contains the same gas at a pressure 10^(5) Pa and is connected to a heat source which maintains its temperature at 400 K . What will be the pressure of entire system if two vessels are connected by a narrow tube tap:-

On a new scale of temperature (which is linear) and called the W scale. The freezing and boiling points of water are 39^(@)W and 239^(@)W respectively. What will be the temperature on the new scale, corresponding to a temperature of 39^(@)C on the Celsius scale?

The spectral energy distribution of the sun has a maximum at 4754Å . If the temperature of the sun is 6050 K, what is the temperature of a star for which this maximum is at 9506Å ?

Pragya tested the solubility of three different substances at different temperatures and collected the data as given below (results are given in the following table, as grams of substance dissolved in 100 grams of water to form a saturated solution). (a) What mass of potassium nitrate would be needed to produce a saturated solution of potassium nitrate in 50 grams of water at 313 K ? (b) Pragya makes a saturated solution of potassium chloride in water at 353 K and leaves the solution to cool at room temperature. What would she observe as the solution cools ? Explain. (c ) Find the solubility of each salt at 293 K . Which salt has the highest solubility at this temperature ? (d) What is the effect of change of temperature on the solubility of a salt ?

RESNICK AND HALLIDAY-TEMPERATURE, ZEROTH LAW OF THERMODYNAMICS AND THERMAL EXPANSION -PRACTICE QUESTIONS (Single Correct Choice Type)

A copper plate has a length of 0.1 m and a width of 0.12 m at 25^@C . ...
Text Solution
|
It is more difficult to measure the coefficient of volume expansion o...
Text Solution
|
A steel string guitar is strung so that there is negligible tension in...
Text Solution
|
The strips of iron and zinc are riveted together to from a bimetallic...
Text Solution
|
The coefficient of linear expansion of a certain of a certain solid is...
Text Solution
|
The given figure shows a brass disk tightly filled into a steel tube. ...
Text Solution
|
A tanker ship is filled with 2.25 xx10^(5) m^3 of gasoline at a refin...
Text Solution
|
The figure shows a rectangular brass plate at 0^@C . in which there i...
Text Solution
|
The coefficient of volume expansion for gold is 4.20xx10^(-5)//""^@C ....
Text Solution
|
Dermatologists often remove small precancerous skin lesions by freezin...
Text Solution
|
An aluminium baseball bat has a length of 0.86 m at a temperature of 1...
Text Solution
|
When the temperature of a coin is raised by 75^@C , the coin's diamete...
Text Solution
|
The given figure shows that,two thin strips of metal are bolted togeth...
Text Solution
|
At a temperature of 0^@C , the mass and volume of a fluid are 825 kg a...
Text Solution
|
A steel rod of length L0 . has a cross sectional area A. The force re...
Text Solution
|
A piece of metal floats on mercury. The coefficients of volume expansi...
Text Solution
|
Three rods of equal of length are joined to from an equilateral triang...
Text Solution
|
An iron rod of length 50 cm is joined at an end to an aluminum rod of ...
Text Solution
|
Two rods are joined between fixed supports as shown in the figure. Con...
Text Solution
|
An iron ball (coefficient of linear expansion=1.2xx(10^(-5)//^(@)C) ha...
Text Solution
|