Properties of Solids & LiquidsSpecific Heat Capacity (KVPY (Kishore Vaigyanik Protsahan Yojana) StreamSA (Class 11) Physics): Questions 4  6 of 7
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Question number: 4
» Properties of Solids & Liquids » Specific Heat Capacity
Appeared in Year: 2013
Question
A 10.0 W electrical heater is used to heat a container filled with 0.5 kg of water. It is found that the temperature of the water and the container rise by 3 K in 15 minutes. The container is then emptied, dried, and filled with 2 kg of oil. It is now observed that the same heater raises the temperature of the containeroil system by 2 K in 20 minutes. Assuming no other heat losses in any of the processes, the specific heat capacity of the oil is.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 5
» Properties of Solids & Liquids » Specific Heat Capacity
Question
Five identical blocks of metal are at 25^{0}C, 52ºC, 60^{0} C, 78^{0} C and 90ºC respectively. The specific heat of the material of the five blocks increases with temperature. Which of the following is true about the final temperature T_{f} when all five 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 56ºC 

b.  T_{f} can be either more than or less than 56ºC depending on the precise variation of the specific heat with temperature 

c.  T_{f} will be 56ºC 

d.  T_{f} will be less than 56ºC 

Question number: 6
» Properties of Solids & Liquids » Specific Heat Capacity
Question
A 15.0 W electrical heater is used to heat a container filled with 0.5 kg of water. It is found that the temperature of the water and the container rise by 4 K in 20 minutes. The container is then emptied, dried, and filled with 3 kg of oil. It is now observed that the same heater raises the temperature of the containeroil system by 3 K in 25 minutes. Assuming no other heat losses in any of the processes, the specific heat capacity of the oil is,
Choices
Choice (4)  Response  

a.  1700 JK^{1} kg^{1} 

b.  1800 JK^{1} kg^{1} 

c.  1900 JK^{1} kg^{1} 

d.  1500 JK^{1} kg^{1} 
