University:
Swansea University
Course:
EGA109 | Introductory Organic Chemistry
Academic year:

2023
Views:

120

Pages:

4
Author:

Sanjeev K

Finst Law Energy of an isolated system remains constant. Whenever a quantity of energy (some form) disappears an exadly equicallni quantity of energy (some other form) must make an Appearan Heat (4) f work(W) are equivalent ways of Changing U of suplem, eg if icu meltsin surroundings it indicats. the transfer of energy as heat. SUz9tw 12 For a system, if wo WD on system, a energy transtemed as heat to a system & DUz resulting Change in internal energy. W the if energy is transferred to supten. as work theat ve if energy is lost from system. heat added to system - WD by system. - If sin system at const P then v D. ( quantity of heat nend. to raise the temp. of system from lower temp (T,) to higher lemp (12) divided by timp. difference. Heat Capacity C man of syp. = Ig then specific heat of optim 2 I mul molar HC. MHC varies with lemp. Co da - if system does work, energy comes trom heat flowing ints system fromsurrounding. of work is done on system, heat flows out of septem to surroundings. Reversible Esothermal expansion WD ren. in is area by perfectgas. under Esottrerm PMRT Ne during in eup Adinbatu 2 WODU - CDT (Imile) 2 20 Rev Ad. Exp -7 Cv lu Rln = Ipr Ad. Exp Free exp: Pex20; AT=O=W=OH Against const pressure