Question

A) 100 g of ideal gas with internal energy U was mixed at 100C with 200 g of the same gas also at 100C. This mixture was heated to 200C. We can predict that internal energy after heating in terms of U is:

a

3.8 U

b

1.27 U

c

6 U

d

2 U

e

3 U

B) Some amount of ideal gas with internal energy U and initial temperature 100C was compressed to half of volume meanwhile absolute pressure inside of a container increased twice. We can say that internal energy of this gas after compression in terms of U is

a

2U

b

0.8 U

c

U/2

d

U

e

1.26 U

Answer 1