Derive an equation for the entropy change of a system of perfect gas when it expands isothermally
from a volume vito a volume vi.
calculate the change in entropy when 4.00 g of nitrogen is allowed to expand from 500 cm to
750 cm at 300 k.
calculate the entropy change in the surroundings when 1.00 mol n2o(g) is formed from 2.00 mol

Temperature and pressure

The answer is 65.3312

Following are the  advantages of the parametric equations: 1) they can be used to graph curves that are not functions, like the unit circle.2) the parameter can be used to represent the quantity that is  useful to  provide us with better information about the graph.3)  it is useful to convert between rectangular equations and parametric equations.with specific reference to chemistry,  parametric equations are employ for solving hydrogen and hydrogen-like ions, quantum mechanically. herein, cartesian coordinates are converted in spherical polar coordinates. the solution obtained, when plotted on spherical polar graph paper, provides visualization of atomic orbital such as s,p,d and f. 

4.49 gramshope that fren : )