8) Calculate the work done for the isothermal expansion of 1 mole of an ideal gas at 27 °C from an initial volume of 20 liters to a final volume of 40 liters.
(R = 8.314 JKmol-').
(7 marks)​

Which statement describes covalent bases? they have hydroxide ions. they produce hydrogen ions. they are often amines. they are named the same as ionic compounds.

Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)

What element has similar physical and chemical properties as boron.