The heat of formation of water is 260 kJ. How much $H_2O$ is decomposed by 130 kJ of heat ?
- 0.25 mol
- 1 mol
- 0.5 mol
- 2 mol
The Correct Option is C
Solution and Explanation
Top Questions on specific heat capacity
In the given cycle ABCDA, the heat required for an ideal monoatomic gas will be:
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Three identical rods are joined as shown in the figure. The left and right ends are kept at \( 0^\circ C \) and \( 90^\circ C \) as shown in the figure. The temperature \( \theta \) at the junction of the rods is:
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- Water flows through a horizontal pipe of variable cross-section at the rate of 12\(\pi\) litres per minute. The velocity of the water at the point where the diameter of the pipe becomes 2 cm is:
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- A solid sphere at a temperature \( T \) K is cut into two hemispheres. The ratio of energies radiated by one hemisphere to the whole sphere per second is:
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- The circuit shown in the figure contains an inductor L, a capacitor \(C_0\), a resistor\( R_0\) and an ideal battery. The circuit also contains two keys \(K_1\) and \(K_2\). Initially, both the keys are open and there is no charge on the capacitor. At an instant, key \(K_1\) is closed and immediately after this the current in \(R_0\) is found to be \(I_1\). After a long time, the current attains a steady state value \(I_2\). Thereafter,\( K_2\) is closed and simultaneously \(K_1\) is opened and the voltage across \(C_0\) oscillates with amplitude \(C_0\) and angular frequency \(\omega_0\).
Match the quantities mentioned in List-I with their values in List-II and choose the correct option.List-I List-II P The value of \(I1\) in Ampere is I \(0\) Q The value of I2 in Ampere is II \(2\) R The value of \(\omega_0\) in kilo-radians/s is III \(4\) S The value of \(V_0\) in Volt is IV \(20\) 200 - JEE Advanced - 2024
- Physics
- specific heat capacity
Concepts Used:
Specific Heat Capacity
Specific heat of a solid or liquid is the amount of heat that raises the temperature of a unit mass of the solid through 1°C.
Molar Specific Heat:
The Molar specific heat of a solid or liquid of a material is the heat that you provide to raise the temperature of one mole of solid or liquid through 1K or 1°C.
Specific Heat at Constant Pressure or Volume:
The volume of solid remains constant when heated through a small range of temperature. This is known as specific heat at a constant volume. It is denoted as CV.
The pressure of solid remains constant when heated through a small range of temperature. This is known as specific heat at constant pressure which can be denoted as CP.