1
BITSAT 2022
+3
-1

In an adiabatic process, no transfer of heat takes place between system and surrounding. Choose the correct option for free expansion of an ideal gas under adiabatic condition from the following.

A
q = 0, $$\Delta$$T $$\ne$$ 0, W = 0
B
q $$\ne$$ 0, $$\Delta$$T = 0, W = 0
C
q = 0, $$\Delta$$T = 0, W = 0
D
q = 0, $$\Delta$$T < 0, W $$\ne$$ 0
2
BITSAT 2021
+3
-1

SI unit of Boltzmann's constant is

A
JK$$-$$1
B
eVK$$-$$1
C
erg K$$-$$1
D
JK
3
BITSAT 2021
+3
-1

For the complete combustion of ethanol, $${C_2}{H_5}OH(I) + 3{O_2}(g) \to 2C{O_2}(g) + 3{H_2}O(I)$$, the amount of heat produced as measured in bomb calorimeter is 1364.47 kJ mol$$-$$1 at 25$$^\circ$$C. Assuming ideality the enthalpy of combustion, $$\Delta$$HC, for the reaction will be (R = 8.314 JK$$-$$1 mol$$-$$1)

A
$$-$$ 1366.95 kJ mol$$-$$1
B
$$-$$1361.95 kJ mol$$-$$1
C
$$-$$ 1460.50 kJ mol$$-$$1
D
$$-$$ 1350.50 kJ mol$$-$$1
4
BITSAT 2021
+3
-1

The incorrect expression among the following is

A
$${{\Delta {G_{system}}} \over {\Delta {S_{total}}}} = - T$$
B
$${W_{reversible}} = - nRT\ln {{{V_f}} \over {{V_t}}}$$
C
$$\ln K = {{\Delta H^\circ - T\Delta S^\circ } \over {RT}}$$
D
$$K = {e^{ - \Delta G^\circ /RT}}$$
EXAM MAP
Medical
NEETAIIMS