Question

Gas in a balloon occupies 2.50 l at 300k. At what temperature, will the balloon expand to 7.50 l?

Answer 1

V1/T1=V2/T2
2.5/300=7.5/T2
T2=903.614

Answer 2

Given - Volume and temperature

Find - Temperature

Solution - Volume and temperature are related by the formula - V1*T2 = V2*T1.

Keep the values in formula

T2 = V2*T1/V1

T1 = $\frac{7.50 \times 300}{2.50}$

Performing multiplication and division

T1 = 900 K

Hence, the expansion will take place at 900 K.