For the reaction, 2Cl(g) Cl2(g), the correct option is:
The correct option for free expansion of an ideal gas under adiabatic condition is:
The solubility of a solute in water varies with temperature and is given as
Here, is enthalpy of the solution. For the given solute variation of log, S with temperature can be shown by the figure given below.
This solute may be
The equilibrium constant for the reaction
is 18.5 at 925 and 9.25 at 1000 respectively. What is the enthalpy of the reaction?
1. -142.16 kJ/mole
2. -71.08 kJ/mole
3. -35.54 kJ/mole
4. none of these
If the value of H in a reaction is positive, then the reaction is called
Molar heat capacity at constant P for a substance is equal to
Plants and living beings are examples of -
1. Isolated system.
2. Adiabatic system.
3. Open system.
4. Closed system.
For an adiabatic expansion of a perfect gas, P/P is equal to?
If a gas at constant temperature and pressure expands,
(1) Internal energy decreases
(2) Entropy increases and then decreases
(3) Internal energy increases
(4) Internal energy remains constant
If a gas absorbs 200 J of heat and expands by 500 against the constant pressure of
2x Nm-2 , then a change in internal energy is -
1. 200 J
4. + 300J