Properties of Solids & Liquids (KVPY Stream-SA (Class 11) Physics): Questions 1 - 3 of 27

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Question number: 1

» Properties of Solids & Liquids » Specific Heat Capacity

MCQ▾

Question

Four identical blocks of metal are at 35ºC, 55 0 C, 75 0 C and 95ºC respectively. The specific heat of the material of the four blocks increases with temperature. Which of the following is true about the final temperature T f when all four blocks are brought into contact? (Assuming that no heat is lost to the surroundings)

Choices

Choice (4) Response

a.

T f can be either more than or less than 65ºC depending on the precise variation of the specific heat with temperature

b.

T f will be less than 65ºC

c.

T f will be more than 65ºC

d.

T f will be 65ºC

Question number: 2

» Properties of Solids & Liquids » Specific Heat Capacity

Appeared in Year: 2010

MCQ▾

Question

A new temperature scale uses X as a unit of temperature, where the numerical value of the temperature t x in this scale is related to the absolute temperature T by t x = 3T + 300. If the heat of a material using this unit is 1400 J kg -1 X –1 its heat in the S. I. system of units is

Choices

Choice (4) Response

a.

466.7 J kg –1 K –1

b.

4200 J kg -1 K –1

c.

1400 J kg –1 K –1

d.

impossible to determine from the information provided

Question number: 3

» Properties of Solids & Liquids » Specific Heat Capacity

Appeared in Year: 2010

MCQ▾

Question

Two identical blocks of metal are at 20ºC and 80ºC respectively. The specific heat of the material of the two blocks increases with temperature. Which of the following is true about the final temperature T f when the two blocks are brought into contact? (Assuming that no heat is lost to the surroundings)

Choices

Choice (4) Response

a.

T f will be more than 50ºC

b.

T f will be less than 50ºC

c.

T f will be 50ºC

d.

T f can be either more than or less than 50ºC depending on the precise variation of the specific heat with temperature

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