Question

A cylinder contains 0.300 mol of carbon dioxide (CO2) gas at a temperature of 30.0 ∘C. The cylinder is provided with a frictionless piston, which maintains a constant pressure of 1.00 atm on the gas. The cylinder is placed on a hot plate and a 920 J of heat flows into the gas, thereby raising its temperature to 129 ∘C. Assume that the CO2 may be treated as an ideal gas. How much work is done by the gas in this process?

Answer 1

Answer:246.92 kJ

Step-by-step explanation:

Given

Initial Temperature
`T_i=30^(\circ)C`

Final Temperature
`T_f=129^(\circ)C`

no of moles
`n=0.3`

Pressure is constant
`P=1 atm`

As Pressure is constant therefore work done is given by

`W=P\Delta V`

`P\Delta V` can also be written as
`P\Delta V=nR\Delta T`

`W=nR\Delta T`

`W=0.3* 8.314* (129-30)`

`W=246.92 kJ`