PHYS 1007 Lecture Notes - Lecture 23: Gas Constant, Ideal Gas Law, Four-Terminal Sensing
9 Apr 2016
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Ideal gas law: it is : pv = nrt, p is pressure in pa, v is volume in meter cubed, n is number of moles, r is the universal gas constant (8. 3 j/kmol), temp in kelvin. Connecion between temperature and internal (kineic) energy: q= mc t, q is change in internal energy in joules, m is mass in kg, c is speciic heat in j/kg c, t is change in temperature ater either celcius or kelvin. Speciic heat can also be measured in moles: q = nc t, upper case indicates: /mole [j/mole c, ideal monatomic gas cv = 3/2 r, diatomic gas cv = 5/2 r. The calorie and the calorie: essenially the speciic heat of water. 1 cal: amount of heat to raise 1 g of water by 1 degree celsius. 1 cal: amount of heat to raise 1 kg of water by 1 degree celsius.
