Capacity at constant pressure show that for 1 mole of ideal gas the following relation holds: (b) using the definitions of enthalpy, heat capacity at constant volume and equation q5.a (4 marks) in a 200 cm3 container, a certain amount of o2 gas is held with a piston at equilibrium with the external pressure being 1 bar. the temperatu of the gas is 298 k. when 2 j of heat is supplied, the gas expands against the constant external pressure. assuming that no heat is lost from the gas, calculate: (c) (i) the new volume it occupies after the expansion 4 marks) (2 marks) (2 marks) (3 marks) the work done in the expansion (ii) (ii) the change in internal energy of the gas (iv) the change in enthalpy of the gas the born-haber process, reaction q5.a has an enthalpy change of (d) -92.4 kj mol- at standard conditions of 298 k and 10s pa. n2 + 3h2 2nh3 reaction q5.a at 298 k, the equilibrium constant for the formation of ammonia is 6.8 x 105. use the van't hoff isochore, equation q5.b to calculate the equilibrium constant at 350 k. dt rt2 equation q5.b

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .

most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante