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 rose by $3 \,K$ in $15 \,min$. The container is then emptied, dried and filled with $2 \,kg$ of an oil. It is now observed that the same heater raises the temperature of the container-oil system by $2 \,K$ in $20 \,min$. Assuming no other heat losses in any of the processes, the specific heat capacity of the oil is ................ $ \times 10^3 \,JK ^{-1} kg ^{-1}$
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 rose by $3 \,K$ in $15 \,min$. The container is then emptied, dried and filled with $2 \,kg$ of an oil. It is now observed that the same heater raises the temperature of the container-oil system by $2 \,K$ in $20 \,min$. Assuming no other heat losses in any of the processes, the specific heat capacity of the oil is ................ $ \times 10^3 \,JK ^{-1} kg ^{-1}$
- [KVPY 2013]
- A
$25$
- B
$51$
- C
$3.0$
- D
$15$
Similar Questions
The heat required to change $1 \,kg$ of ice at $-8^{\circ} C$ into water at $20^{\circ} C$. at $1 \,atm$ of pressure, is closest to .............$\,kJ$ (Assume that ice has a specific heat capacity $2.1 \,kJ / kg / K$. water has a specific heat capacity $4.2 \,kJ / kg / K$, and latent heat of fusion of ice is $333 \,kJ / kg$ )
The heat required to change $1 \,kg$ of ice at $-8^{\circ} C$ into water at $20^{\circ} C$. at $1 \,atm$ of pressure, is closest to .............$\,kJ$ (Assume that ice has a specific heat capacity $2.1 \,kJ / kg / K$. water has a specific heat capacity $4.2 \,kJ / kg / K$, and latent heat of fusion of ice is $333 \,kJ / kg$ )
- [KVPY 2021]
We have half a bucket $(6l)$ of water at $20\,^oC$ . If we want water at $40\,^oC$, how much steam at $100\,^oC$ should be added to it ?
We have half a bucket $(6l)$ of water at $20\,^oC$ . If we want water at $40\,^oC$, how much steam at $100\,^oC$ should be added to it ?
What is calorimetry ? What is calorimeter ? Explain its principle and construction.
What is calorimetry ? What is calorimeter ? Explain its principle and construction.
A copper ball of mass $100\ gm$ is at a temperature $T$. It is dropped in a copper calorimeter of mass $100\ gm$, filled with $170\ gm$ of water at room temperature. Subsequently, the temperature of the system is found to be $75^o C$. $T$ is given by......$^oC$ (Given : room temperature $= 30^o C$, specific heat of copper $=$ $0.1$ $cal/gm^o C$)
A copper ball of mass $100\ gm$ is at a temperature $T$. It is dropped in a copper calorimeter of mass $100\ gm$, filled with $170\ gm$ of water at room temperature. Subsequently, the temperature of the system is found to be $75^o C$. $T$ is given by......$^oC$ (Given : room temperature $= 30^o C$, specific heat of copper $=$ $0.1$ $cal/gm^o C$)
- [JEE MAIN 2017]
$10 \,\,gm$ of ice at $0^o C$ is kept in a calorimeter of water equivalent $10 \,\,gm$. ....... $cal$ heat should be supplied to the apparatus to evaporate the water thus formed? (Neglect loss of heat)
$10 \,\,gm$ of ice at $0^o C$ is kept in a calorimeter of water equivalent $10 \,\,gm$. ....... $cal$ heat should be supplied to the apparatus to evaporate the water thus formed? (Neglect loss of heat)