Question

A student decreases the temperature of a 556 cm balloon from 278 K to 231 K. Assuming constant pressure, what should be the new volume of the balloon be? a. 417 cm

b 462 cm
c. 924 cm
d. 376 cm

Answer 1

The problem gives two temperature and a constant pressure and asks for the resulting volume. The problem is an application of Charles' law. Assuming ideal gas law equation is also applicable,
`( V_(1) )/( T_(1) )`=
`( V_(2) )/( T_(2) )`. Substituting volume 1 equals 556 cm3, T1=278 K and T2=231 K, then volume 2 is 462 cm3. Hence, the answer is B.