LIVE Course for free

Rated by 1 million+ students
Get app now
+1 vote
in Chemistry by (29.8k points)

Density of a gas is found to be 5.46 g/dm3 at 27 °C at 2 bar pressure. What will be its density at STP?

2 Answers

+2 votes
by (1.1k points)
selected by
Best answer

For an ideal gas

Density ρ = p x M/ RT

F rom the given data,

5.46 = 2 x M/ 300 x R    ………(1)

ALSO  ρSTP = 1 x M/ 273 x R    ………..(2)

FROM (1) & (2) ,WE GET

ρSTP =  (1 x M/ 273 x R)   x  (300 x R/ 2 x M)

= 300 / 273 X 2 = 3.00 g/dm3

Hence, the density of the gas at STP will be 3 g dm–3.

+1 vote
by (128k points)


The density (d2) of the gas at STP can be calculated using the equation, 

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.