An ideal gas has an initial volume of 500 cm3

Question

, an initial temperature of 20◦C, and an initial
pressure of 2 atm. What is its final pressure if the volume is allowed to expand to 1000 cm3
while the temperature increases to 60◦C?

Answer 1

The gas is ideal, so we can use the formula
P1 * V1 / T1 = P2 * V2 / T2
where
P1 and P2 = initial and final pressures respectively
V1 and V2 = initial and final volumes respectively
T1 and T2 = initial and final absolute temperatures respectively

Note that the temperature must be absolute, or the units must be in Kelvin. To convert Celsius units to Kelvin units, just add 273.
Substituting,
2 * 500 / (20+273) = (P2) * 1000 / (60+273)

Now solve for P2. Units in atm.
hope this helps~ `u`