A 50-gram sample of dry ice (solid CO2) is placed in a 4-liter ...

[natalie2426]

A 50-gram sample of dry ice (solid CO2) is placed in a 4-liter container. The system is sealed and allowed to reach room temperature (20C). By approximately how much does the pressure inside the container increase when the dry ice turns to gas? (Ignore the initial volume of the sample.)

Question 2

Suppose the ends of a 30-m long steel beam are rigidly clamped at 0C to prevent expansion. The beam has a cross-sectional area of 30 cm2 . What force against the clamps does the beam exert when it is heated to 40C? (aSteel = 1.1  10-5/C, Ysteel = 20  1010 N/m2).

[otokexnaru]

Answer to Question 1

the pressure increases by about 7 atm

Answer to Question 2

2.6  105 N