P. 4460. 31.4 J of heat is given to a sample of ideal gas. Because of this the gas expands from a volume of 0.3 litres to 0.8 litres, at a constant pressure of 1.57.104 Pa.
a) Determine the change in the internal energy.
b) What is the degree of freedom of the gas?
Deadline expired on 10 October 2012.