4 What would the volume of a gas be at -150°C, if it had a volume of 693 mL at 45°C?

v2=268.047mL

Explanation:

V1/T1=v2/T2

V1=693mL

T1=45°c to convert to Kelvin 273+45=318k

V2=?

T2=-150°c to convert to Kelvin

273-150=123k

693/318=v2/123

Cross multiply

318v2=693×123

V2=85239/318

V2=268.047mL

answer; talc and gypsum;