In a P-V graph if the initial state is further away from the y axis than the final state, which of these statements is true?
The work done by the gas is positive
The work done by the gas is zero
The work done by the gas is negative
No generalized statement can be made
10 moles of oxygen (O2) gas is being expanded in a container, maintained at a constant pressure, by supplying 500J of heat. What is the rise in the gas' temperature? Assume the atoms do not oscillate along the bond axis, and the gas is pretty much ideal
What would be the work done by the gas if the entire process is reversed (3 - 2 - 1)?
A bubble of 5.00 mol of helium is submerged at a certain depth in liquid water when the water (and thus the helium) undergoes a temperature increase ΔT of 20.0∘C; at constant pressure. As a result, the bubble expands. The helium is monoatomic and ideal. How much work W is done by the helium as it expands against the pressure of the surrounding water during the temperature increase? Use the first law of thermodynamics.
Consider the set up shown, where we have an ideal gas trapped in a cylindrical container, kept on a thermal reservoir which provides heat to the system. The weight on top maintains a constant pressure P on the gas. Supplying heat Q changes the temperature by ΔT, and expands the volume by ΔV. The expanding gas displaces the container and does work, W. Choose the correct inferences from the following options
Q = nCpΔT
W = nRΔT
Increase in internal energy, ΔEint = n(Cp − R)ΔT
Increase in internal energy, ΔEint = nCvΔT.
Calculate the work done by an ideal gas as it is taken through the process (1 - 2 - 3) as shown in the graph below.
- 0.1 J
- 0.02 J
- 0.05 J
- 0.08 J
- -1728 J
- -1572.5 J
- 1672.5 J
- 1728 J