Question

The initial volume of 0.18 kg of a certain gas was 0.15 m3 at a

temperature of 15°C and a pressure of 1 bar, after adiabatic

compression to 0.056 m3 the pressure was found to be 4 bar,

find 10

i) Gas constant

ii) Molecular mass of the gas

iii) Ratio of specific heats

iv) Two specific heats​

Answer 1

BASIC THERMODYNAMICS J2006/3/1 UNIT 3BASIC THERMODYNAMICS OBJECTIVESGeneral Objective : To understand the laws of thermodynamics and its constants.Specific Objectives : At the end of the unit you will be able to:  define the definitions of Boyle’s Law, Charles’ Law and Universal Gases Law  define and show the application of the specific heat capacity at constant pressure  define and apply the specific heat capacity at constant volume

2. BASIC THERMODYNAMICS J2006/3/2 INPUT3.0 Definition Of Perfect Gases Did you know, one important type of fluid that has many applications in thermodynamics is the type in which the working temperature of the fluid remains well above the critical temperature of the fluid? In this case, the fluid cannot be liquefied by an isothermal compression, i.e. if it is required to condense the fluid, then cooling of the fluid must first be carried out. In the simple treatment of such fluids, their behavior is likened to that a perfect gas. Although, strictly speaking, a perfect gas is an ideal which can never be realized in practice. The behavior of many ‘permanent’ gases, e.g. hydrogen, oxygen, air etc is very similar to the behavior of a perfect gas to a first approximation. A perfect gas is a collection of particles that:  are in constant, random motion,  have no intermolecular attractions (which leads to elastic collisions in which no energy is exchanged or lost),  are considered to be volume-less points. You are more familiar with the term ‘ideal’ gas. There is actually a distinction between these two terms but for our purposes, you may consider them interchangeable. The principle properties used to define the state of a gaseous system are pressure (P), volume (V) and temperature (T). SI units (Systems International) for these properties are Pascal (Pa) for pressure, m3 for volume (although liters and cm3 are often substituted), and the absolute scale of temperature or Kelvin (K). Two of the laws describing the behavior of a perfect gas are Boyle’s Law and Charles’ Law. please mark as brainly