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MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

An ideal gas receives 10 J of heat in a reversible isothermal expansion. Then the work done by the gas:

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

The pressure of a gas is 100 kPa. If it is compressed from 1m3 to 10 dm3, find the work done.

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

The densities of graphite and diamond at 298 K are 2.25 and 3.31 g cm–3, respectively. The standard free energy difference ( G ) is equal to 1895 J mol–1, the pressure at which graphite will be transformed into diamon…

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

Gaseous system is placed with pressure P₁, volume V₁ and  temperature  T1,  it  has  undergone  thermodynamic changes where temperature is remaining constant, it is

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

U q w , is mathematical expression for

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

According to the first law of thermodynamics, U q w . In special cases the statement can be expressed in different ways. Which of the following is not a correct expression?

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

A system absorb 10 kJ of heat at constant volume and its temperature rises from 27°C to 37°C. The value of ∆U is

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

Two moles of Helium gas undergo a reversible cyclic process as shown in figure. Assuming gas to be ideal. What is the work done for the process C to D?

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

An ideal gas expands in volume from 1 × 10–3 to 1 × 10–2 m3 at 300 K against a constant pressure 1 × 105 Nm–2. The work done is

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

A given mass of gas expands from state A to state B by three paths 1, 2, and 3 as shown in the figure: If w ,w  and w  respectively, be the work done by the gas along three paths, then (a) w w w (b) w w w

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

The maximum work obtained by an isothermal reversible expansion of 1 mole of an ideal gas at 27°C from 2.24 to 22.4 L is (R = 2 cal)

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

Calculate the work done when 1 mol of an ideal gas is compressed reversibly from 1 bar to 4 bar at a constant temperature of 300 K

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

Calculate the work done when 1 mole of an ideal gas is compressed reversibly form 1 bar to 4 bar at a constant temperature of 300 K.

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

Molar heat capacity of water in equilibrium with ice at constant pressure is

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

One mole of an ideal gas expands reversibly and adiabatically from a temperature of 27°C. If the work done during the process is 3 kJ, then final temperature of the gas is:(CV = 20 J/K)

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

Which one of the following has  S  greater than zero? (a) CaO s CO g CaCO s (b) NaCl aq NaCl s (c) NaNO s Na aq NO aq (d) N g 3H g 2NH g

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

G T S  when H

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

G H T S when H S Hence, Correct option is c

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

Unit of entropy is

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

In which case change in entropy is negative?

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

One mole of an ideal diatomic gas (Cv = 5 cal) was transformed from initial 25°C and 1 L to the state when temperature is 100°C and volume 10 L. The entropy change of the process can be expressed as (R = 2 calories/mo…

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

A reaction has ∆H = – 33 kJ and ∆S = +58 J/K. This reaction would be :

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

Pick out the wrong statement

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

For the gas phase reaction, PCl g PCl g Cl g Which of the following conditions are correct?

MEDIUMMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryThermodynamics and Thermochemistry

The state of a thermodynamic system is represented by

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