The density of a gas at 27'c and 1 atm is d. pressure remaining consta

1.	The density of a gas at 27'c and 1 atm is d. pressure remaining constant, at which of the following temperature will its density become 0.75 d? a) 20'c b) 30'c c) 400'c d) 300 k
Answer» "As PER the formula where T is temperature and P is Pressure PV = nRT PV = m/M RT PM = m/V RT PM = dRT Here, (1) PV = d R 300 (2) PV = 0.75 d RT From (1) and (2) 1 = 300/0.75T T = 400 K Hence, C is the RIGHT option for the PROBLEM. "

The density of a gas at 27'c and 1 atm is d. pressure remaining constant, at which of the following temperature will its density become 0.75 d? a) 20'c b) 30'c c) 400'c d) 300 k

Answer»

"As PER the formula where T is temperature and P is Pressure

PV = nRT

PV = m/M RT

PM = m/V RT

PM = dRT

Here,

(1) PV = d R 300

(2) PV = 0.75 d RT

From (1) and (2)

1 = 300/0.75T

T = 400 K

Hence, C is the RIGHT option for the PROBLEM.