Question

The pressure exerted by 6.0g of methane gas in a
0.03 m³ vessel at 129°C is (Atomic masses : C =
12.01, H = 1.01 and R = 8.314 JK⁻¹ mol ⁻¹)
(a) 31684 Pa (b) 215216 Pa
(c) 13409 Pa (d) 41648 Pa

Answer 1

Explanation:

Perimter=sum of all lengths of sides of triangle

⇒ Perimeter =3a {a= side of triangle }

⇒45=3a

⇒a=15cm.