Conservation of Mass and Energy - First Law of Thermodynamics

Work is defined as a force acting through a displacement x perpendicular to the force.

Work done by a system is always negative (-).

The formula for work, W = F x d, can be expressed in N-m or Joules.

In a quasi-equilibrium process, the deviation from thermodynamic equilibrium is significant.

A closed system allows for mass flow across its boundaries.

An open system involves a flow of energy.

In the given scenario, the pressure in the cylinder is a function of volume represented as p=C/V.

The latent vaporization process involves turning a gas into a liquid.

The heat transfer per unit mass of the system is represented by q=Q/m.

The work done by the system is found to be negative in the given problem.

The specific enthalpy is calculated using the formula h = u + pv.

The final pressure in the cylinder is 200 KPa according to the scenario.

The First Law of Thermodynamics states that energy can be created but not destroyed.

In a closed system, the energy entering the system is equal to the change of energy within the system plus the energy leaving the system.

For a Single Stream, Single Flow (SSSF) process, the energy entering the system is not equal to the energy leaving the system.

If Ein = ΔE + Eout and min = Δm + mout, then the system is closed and the working substance undergoes a steady-state process.

In the absence of any work interaction between a closed system and the surroundings, the heat transfer is equal to the total work of the closed system.

Processes in a closed system are referred to as non-flow processes.