At 300 K, a sample of 3.0 g of gas A occupies the same volume as 0.2 g of hydrogen at 200 K at the same pressure. The molar mass of gas A isg mol -1 (nearest integer) Assume that the behaviour of gases as ideal. (Given: The molar mass of hydrogen ( H 2) gas is .2.0 g mol -1)

Question

At 300 K, a sample of 3.0 g of gas A occupies the same volume as 0.2 g of hydrogen at 200 K at the same pressure. The molar mass of gas A isg mol -1 (nearest integer) Assume that the behaviour of gases as ideal. (Given: The molar mass of hydrogen ( H 2) gas is .2.0 g mol -1) (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

Given: Ideal gas A and H 2 gas at same pressure and volume. From ideal gas equation pv = nRT n 1 T 1= n 2 T 2 (3/ text GMMof A ) × 300=(0.2/2) × 200 GMM of A =45 g / mole

Q. At 300K, a sample of 3.0g of gas A occupies the same volume as 0.2g of hydrogen at 200K at the same pressure. The molar mass of gas A is______gmol−1 (nearest integer) Assume that the behaviour of gases as ideal. (Given: The molar mass of hydrogen (H2​) gas is 2.0gmol−1)

Given : Ideal gas A and H2​ gas at same pressure and volume. From ideal gas equation pv=nRT n1​T1​=n2​T2​ GMMof A3​×300=20.2​×200 GMM of A=45g/mole

Given : Ideal gas $A$ and $H_{2}$ gas at same pressure and volume.
From ideal gas equation $p v = n RT$
$n_{1} T_{1} = n_{2} T_{2}$
$\frac{3}{GMMof A} \times 300 = \frac{0.2}{2} \times 200$
GMM of $A = 45 g / m o l e$