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Doctors Medicines MCQs Q&A

  1. A and B
  2. B and C
  3. A and D
  4. C and D
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1 Answers

Option 1 : A and B

Concept: 

  • When heat is absorbed or lost by the system leads to a change in temperature.
  • Change in temperature due to heat transfer is measured by a thermometer.
  • Temperature is an intensive property 
  • It does not depend on the amount of substance

Explanation: 

  • As we know temperature is an intensive property so it will not change by transferring some amount of it into another vessel.
  • Heat is transferred through the material in three forms
    • Conduction
    • Convection
    • Radiation 
  • But in this problem we have not provided heat externally, so, heat will not be transferred by any of these forms.
  • Therefore, the temperature of water in the beaker and bucket are almost the same.

  •  Heat is a form of energy.
  • Heat flows from an object which is at a higher temperature to a body of lower temperature or from a hotter body to a colder one.
  • Heat continues to flow until the heat content of the two bodies becomes equal.
  • At this point, the temperature of the two bodies is the same and they have reached thermal equilibrium.
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Related Questions

In the following question, the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/ passage and find out which of the four combinations is correct. 1. Jupiter has 2.5 times more mass than all the other planets of the solar system combined and is 11 times as large as Earth in diameter. P. Jupiter is so large that scientists believe it almost became a star: as the gases and dust contracted to the form the planet, Q. But there was not enough mass available to create the temperature needed to start a fusion reaction such as that of the Sun. R. Thus, Jupiter has been cooling down ever since.  S. gravitational forces created tremendous pressure and the temperature inside the core—as high as tens of thousands of degrees. 6. Even so, Jupiter radiates about as much heat as it receives from the Sun.?
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