For an ideal gas, the heat of reaction at constant pressure and constant volume are related as

• H + E = pV

• $\mathrm{E} = \mathrm{H} + \mathrm{p}∆\mathrm{H}$

• ${\mathrm{q}}_{\mathrm{p}} = {\mathrm{q}}_{\mathrm{v}} + ∆\mathrm{nRT}$

• None of the above

A constant current of 30 A is passed through an aqueous solution of NaCl for a time of 1.00 h. What is the volume of Cl₂ gas at STP produced?

• 30.00 L

• 25.08 L

• 12.54 L

• 1.12 L

At the same conditions of pressure, volume and temperature, work done is maximum for which gas if all gases have equal masses ?

• NH₃

• N₂

• Cl₂

• H₂S

When 10 A current is passed for 80 min, the volume of hydrogen gas liberated is

• 11.14 L

• 5.57 L

• 22.4 L

• 2.78 L

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

• 990 J

• 9990 J

• 9900 J

• 99000 J

LPG mainly consist of the following

• methane

• hydrogen

• acetylene

• butane

227.

The laughing gas is

• N₂O₄

• NO

• N₂O

• N₂O₅

The work done when two mole of an ideal gas is compressed form a volume of 5 m³ to 1 dm³ at 300 K, under a pressure of 100 kPa is

• 499.9kJ

• -499.9 kJ

• -99.5 kJ

• 42495 kJ

The equation that represents general van't Hoff equation is 

• $\mathrm{\pi }= \frac{\mathrm{n}}{\mathrm{V}}\mathrm{RT}$

• $\mathrm{\pi }= \mathrm{nRT}$

• $\mathrm{\pi }= \frac{\mathrm{V}}{\mathrm{n}}\mathrm{RT}$

• $\mathrm{\pi }= \mathrm{nVRT}$

Calculate the work done during compression of 2 mol of an ideal gas from a volume of 1 m³ to 10 dm³ 300K against a pressure of 100 KPa

• -99 kJ

• +99 kJ

• +22.98 kJ

• -22.98 kJ