Thermodynamics-I Set 2

29.27 kgfm/mol ✘ 8314kgfm/mol ✘ 848kgfm/mol ✘ 427kgfm/mol ✔ 735 kgfm/mol?K. ✔

deals with conversion of mass and energy ✘ deals with reversibility and irreversibility of process ✘ states that if two systems are both in equilibrium with a third system, they are in thermal equilibrium with each other ✘ deals with heat engines ✔ does not exist. ✔

increases ✘ decreases ✘ remains constant ✘ may increase/decrease depending on the properties of gas ✔ shows unpredictable behaviour. ✔

80°C ✘ 0°C ✘ 40°C ✘ 20°C ✔ 60°C ✔

1 Nm/s ✘ 1 N/mt ✘ 1 Nm/hr ✘ 1 kNm/hr ✔ 1 kNm/mt. ✔

constant volume ✘ free expansion ✘ throttling ✘ all Of the above ✔ none of the above. ✔

volume ✘ pressure ✘ temperature ✘ enthalpy ✔ entropy. ✔

flow is uniform and steady ✘ process is isentropic ✘ process is isothermal ✘ process is isentropic and specific heat does not change with temperature ✔ process is isentropic and specific heat changes with temperature. ✔

nominal temperature and pressure ✘ natural temperature and pressure ✘ normal temperature and pressure ✘ normal thermodynamic practice ✔ normal thermodynamic pressure. ✔

heat exchange process ✘ throttling process ✘ isentropic process ✘ adiabatic process ✔ hyperbolic process. ✔