Temperature and Measurement of Temperature

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Temperature and Measurement of Temperature: Overview

This topic covers concepts such as Thermometry, Linear Thermodynamic Properties of Matter, Kelvin Scale, Fahrenheit Temperature Versus Celsius Temperature and Boiling Point of Water.

Important Questions on Temperature and Measurement of Temperature

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At what temperature does water boil?

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In which of the following pairs of temperature scales, the size of the degree is identical?

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When the pressure on water is increased the boiling temperature of water as compared to 100°C will be

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The temperature of a steel rod is 330 K. Its temperature in °C is _____.

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A difference of temperature of 25°C is equivalent to a difference of 

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A certain liquid has a melting point of -50°C and a boiling point of 150°C. A thermometer is designed with this liquid and its melting and boiling points are designated at 0°L and 100°L. The melting and boiling points of water on this scale are
 

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The temperature of a body on Kelvin scale is found to be x K. When it is measured by Fahrenheit thermometer, it is found to be x° F, then the value of x is:-

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Three different liquids A, B and C of equal masses at a temperature of 12oC, 19oC and 28oC respectively are mixed. When liquid A and B are mixed temperature is 16oC . When B and C are mixed attains 23oC . The temperature when A and C are mixed is

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If temperature of an object is 140 °F, then its temperature in centigrade is

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At NTP water boils at 100 oC. Deep down a mine, water will boil at a temperature

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When a thermometer is taken from the melting ice to a warm liquid, the mercury level rises to 25th of the distance between the lower fixed point (0 ) and the upper fixed point (100 ). The temperature of liquid (in K) is:

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Two similar thermocouples made up of similar metals A and B are connected through a key K and sensitive galvanometer G as shown in the figure. One of the thermocouple is dipped in a hot bath maintained at temperature t2 and other one in a cold bath at a temperature t1. When the key K is pressed a deflection is seen in the galvanometer because:

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The coefficient of linear expansions of brass and steel are α1 and α2 respectively. When we take a brass rod of length l1 and steel rod of length l2 at 0o C , then the difference in their lengths l2-l1 will remain the same at all temperatures if

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A beaker full of hot water is kept in a room. If it cools from 80oC to 75o C in t1 minutes, from 75o C to 70o C in t2 minutes and from 70oC to 65o C in t3 minutes, then

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The temperature at which Centigrade thermometer and Kelvin thermometer gives the same reading, is

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On an X temperature scale, water freezes at –125.0° X and boils at 375.0° X. On a Y temperature scale, water freezes at –70.0° Y and boils at –30.0° Y. The value of temperature on X-scale equal to the temperature of 50.0°Y on Y-scale is

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The point on the pressure-temperature phase diagram where all the three phases co-exist is called

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The temperature of triple point of water on an absolute scale whose unit interval size is equal to that of the Fahrenheit scale is T. Write the value of T, where   is the greatest integer function. Consider 1°C=273.15 K.

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Two absolute scales A and B have triple points of water defined to be 200 A and 350 B. What is the ratio of TA and TB ?